#0044FFRare Blue (#0044FF) is a mid-tone, vivid blue with an OKLCH hue of 264°, lightness 0.51 and chroma 0.277. It sits on the cool side of the color wheel. In practice it behaves as an accent color: strong in focal moments, dominant over large fields.
| HEX | #0044FF |
|---|---|
| RGB | rgb(0, 68, 255) |
| HSL | hsl(224, 100%, 50%) |
| HSV | hsv(224, 100%, 100%) |
| CMYK | cmyk(100%, 73%, 0%, 0%) |
| CIE Lab | lab(40.2 55.8 -94.8) |
| OKLCH | oklch(0.507 0.277 264) |
Under warm 2700K interior light Rare Blue shifts noticeably: leans toward purple, loses intensity; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 2.7), so it is a lighting-stable choice.
#2246f0 — ΔE 2.7, shifts noticeably: leans toward purple, loses intensity#1647fb — ΔE 1.1, shifts only faintly, with no single dominant change#0044ff — ΔE 0.0, is virtually unchanged#0043ff — ΔE 0.2, is virtually unchangedTest Rare Blue in the color lighting simulator — sweep it through daylight, warm 2700K light, 4000K LED, and shade alongside the rest of your palette.
Against white it measures 6.42:1 and against black 3.27:1, so white text is the stronger pairing. That pairing passes WCAG AA for body text.
One color explored: close hues with real lightness and chroma structure, so the palette is the anchor through value rather than a set of colors.
#96b9ff · #588dff · #0044ff · #0030c6 · #001580 · #000042
The anchor's neighbours on the wheel — everything shares an undertone, so the chord carries color without anything having to be muted to get along.
#0094c7 · #007aca · #0044ff · #4918db · #5400a5 · #4f0070
The mid-gap pairing — sage and mustard, terracotta and olive. A foil rotated 40–65° toward warm or cool: too far to be kin, too near to argue, carried by temperature and a deliberate value offset.
#e4a2ff · #d667ff · #a266ba · #0044ff · #002ec2 · #001988
One deliberately opposed voice — a single restrained counterpoint across the wheel, or temperature against temperature where the anchor is too muted to carry a loud opposite.
#f8b800 · #6b85b8 · #0044ff · #193e97 · #031f6d · #00083a
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#fef0d5 · #a5b7db · #887e6b · #0044ff · #394c71 · #0d0500
This color as a ground rather than a subject — its own restraint held across a narrow value band, carrying one saturated voice from the opposite temperature.
#f7f1e6 · #d1cbbe · #a8a092 · #362d1b · #140b00 · #0044ff
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#fff0d4 · #e7ac00 · #a27700 · #0044ff · #624700 · #000012
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#fff0d4 · #ff9a53 · #7f8700 · #0044ff · #773800 · #030200
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#ffedeb · #ff948f · #009a19 · #0044ff · #005e0a · #080000
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#ffecf3 · #ff8cbe · #a27700 · #0044ff · #005a48 · #0d0500
#306DFF · #578CFF · #7EA8FF · #A4C3FF · #CADCFF
#0036D9 · #0029B2 · #001C8E · #000077 · #000051
#1D55DF · #335EBF · #47639E
Its chroma is high enough to carry accents, calls to action, and focal moments; large fields of it will dominate a composition. In palettes it pairs most predictably with its tonal ramp and analogous neighbors; reserve the complementary hue for small, deliberate contrast.