#4C567ADeep Indigo (#4C567A) is a dark, muted blue with an OKLCH hue of 272°, lightness 0.46 and chroma 0.06. It sits on the cool side of the color wheel. In practice it behaves as a mid-weight working color for secondary surfaces and editorial blocks.
| HEX | #4C567A |
|---|---|
| RGB | rgb(76, 86, 122) |
| HSL | hsl(227, 23%, 39%) |
| HSV | hsv(227, 38%, 48%) |
| CMYK | cmyk(38%, 30%, 0%, 52%) |
| CIE Lab | lab(37.1 5.7 -21.6) |
| OKLCH | oklch(0.460 0.060 272) |
Under warm 2700K interior light Deep Indigo shifts subtly: leans toward purple; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 1.4), so it is a lighting-stable choice.
#515472 — ΔE 1.4, shifts subtly: leans toward purple#505778 — ΔE 0.8, shifts subtly: leans toward purple#4c567a — ΔE 0.0, is virtually unchanged#4c567c — ΔE 0.3, is virtually unchangedTest Deep Indigo 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 7.19:1 and against black 2.92:1, so white text is the stronger pairing. That pairing passes WCAG AA for body text. Avoid black text on this color entirely.
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.
#a0aac8 · #7a84a5 · #4c567a · #343d5d · #171e39 · #020418
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.
#5a7f9a · #4f6a8f · #4c567a · #46416b · #3f2f53 · #351f3b
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.
#bfa9c0 · #a983ac · #806d81 · #4c567a · #313b5f · #1a2141
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.
#d5c38c · #9097b0 · #727785 · #4c567a · #333950 · #1b1f2c
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f4f2ea · #acafb9 · #73716c · #4c567a · #3c3f4a · #010100
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.
#edf1ff · #c3c9db · #4c567a · #1c223b · #020217 · #e4c14d
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#f7f2e1 · #bdaf84 · #81703b · #4c567a · #4c3e12 · #000007
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#f7f2e1 · #cca889 · #6a7946 · #4c567a · #583719 · #010100
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#ffede9 · #d3a298 · #4f7e5c · #4c567a · #23492f · #050000
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#ffecf1 · #d1a0ac · #81703b · #4c567a · #064a42 · #080400
#656F90 · #7F88A6 · #9AA2BC · #B6BDD3 · #D3D9EA
#3E4767 · #313955 · #242B44 · #181E33 · #0D1123
#4E5773 · #51576C · #535865
Its moderate chroma lets it work in mid-size areas — upholstery, secondary UI surfaces, editorial blocks — without overwhelming neighbors. In palettes it pairs most predictably with its tonal ramp and analogous neighbors; reserve the complementary hue for small, deliberate contrast.