#211E1FUmbra (#211E1F) is a near-black neutral with an OKLCH hue of 355°, lightness 0.24 and chroma 0.005. In practice it behaves as a grounding tone — suited to text, outlines, and shadowed surfaces.
| HEX | #211E1F |
|---|---|
| RGB | rgb(33, 30, 31) |
| HSL | hsl(340, 5%, 12%) |
| HSV | hsv(340, 9%, 13%) |
| CMYK | cmyk(0%, 9%, 6%, 87%) |
| CIE Lab | lab(11.6 1.7 -0.2) |
| OKLCH | oklch(0.239 0.005 355) |
Under warm 2700K interior light Umbra is virtually unchanged; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 0.6), so it is a lighting-stable choice.
#231d1c — ΔE 0.6, is virtually unchanged#221e1e — ΔE 0.3, is virtually unchanged#211e1f — ΔE 0.0, is virtually unchanged#211e20 — ΔE 0.2, is virtually unchangedTest Umbra 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 16.53:1 and against black 1.27:1, 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.
#a6a4a4 · #817e7f · #5d5a5b · #3c393a · #211e1f · #040303
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.
#58302c · #491d25 · #211e1f · #28051f · #18021c · #0a0015
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.
#c1a395 · #aa7d8d · #926148 · #6e4354 · #483227 · #211e1f
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.
#8fd5c1 · #847178 · #694f59 · #44353b · #211e1f · #130208
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#ebf4f1 · #b6aaae · #6a706e · #3d3135 · #211e1f · #060d0b
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.
#f3f1f2 · #cccacb · #a19fa0 · #494747 · #211e1f · #e55096
The same quiet ground carrying one bright gold voice — the high-energy pairing a cool or muted anchor cannot reach through its own temperature.
#f3f1f2 · #cccacb · #a19fa0 · #494747 · #211e1f · #ddc44e
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#e3f7f1 · #85bbac · #387d6c · #003f33 · #211e1f · #17040c
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#e3f7f1 · #97b897 · #2e7b83 · #1e3e20 · #211e1f · #000e11
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#f1f4e3 · #acb387 · #3f7594 · #093a51 · #211e1f · #0b0c00
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#f9f1e1 · #bfab82 · #387d6c · #253456 · #211e1f · #000f0a
#464444 · #6b696a · #908f8f · #b5b4b4 · #dadada
#1c191a · #161415 · #110f10 · #0b0a0a · #060505
As a deep tone it works for grounding elements — text, outlines, and shadowed surfaces — rather than open fields.