#21150B
Closest named color: Dark Brown (#341C02). oklch(20.8% 0.027 60.4), rgb(33, 21, 11).
Aa
White text reads best on this color (17.84:1).
About this color
#21150B is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Dark Brown (#341C02), ΔE 0.053 away. White text reads best on it, at 17.84:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.17:1 |
| White text | 17.84:1 |
Values
| HEX | #21150B |
| RGB | rgb(33, 21, 11) |
| HSL | hsl(27, 50%, 9%) |
| OKLCH | oklch(20.8% 0.027 60.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #21150B | 17.84:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #21150B | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #21150B text on white | 17.84:1 | AAA | Lc 104.6 | Preferred for body text |
| #21150B text on black | 1.17:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F8F5F3
oklch(97.2% 0.004 56.4)
-
Step 100
100
#EFE9E4
oklch(93.7% 0.009 62.6)
-
Step 200
200
#E2D7CE
oklch(88.5% 0.017 61.9)
-
Step 300
300
#D1BCAD
oklch(80.9% 0.032 57.8)
-
Step 400
400
#B99A81
oklch(70.8% 0.051 60.7)
-
Step 500
500
#A78161
oklch(63.2% 0.065 61.3)
-
Step 600
600
#926A48
oklch(55.7% 0.07 61)
-
Step 700
700
#7C5839
oklch(49.1% 0.066 61.1)
-
Step 800
800
#654830
oklch(42.7% 0.054 60.2)
-
Step 900
900
#523C2A
oklch(37.6% 0.042 60.3)
-
Step 950
950 (this color)
#21150B
oklch(20.8% 0.027 60.4)
#21150B with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #19160A | 0.018 |
| Deuteranopia (no green cones) | #1B190B | 0.018 |
| Tritanopia (no blue cones) | #241312 | 0.018 |
| Achromatopsia (no color) | #171717 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21150B
#21150B
oklch(20.8% 0.027 60.4)
- #0C1A23
#0C1A23
oklch(21% 0.026 238)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #21150B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.053
- Rich Black #0D1B2A ΔE 0.063
- Jet #212529 ΔE 0.065
- Very Dark Brown #1D0200 ΔE 0.066
- Almost Black #070D0D ΔE 0.066
- Rich Navy #001219 ΔE 0.070
- Dark #1B2431 ΔE 0.073
- Dark Maroon #3C0008 ΔE 0.074
Use #21150B in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.