#151D11
Closest named color: Rich Black (#0D1B2A). oklch(21.9% 0.026 135.5), rgb(21, 29, 17).
Aa
White text reads best on this color (17.27:1).
About this color
#151D11 is a very dark close to neutral grey. In OKLCH its lightness is 22%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.052 away. White text reads best on it, at 17.27:1.
| Hue family | Neutrals |
| Lightness | very dark (22%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.21:1 |
| White text | 17.27:1 |
Values
| HEX | #151D11 |
| RGB | rgb(21, 29, 17) |
| HSL | hsl(100, 26%, 9%) |
| OKLCH | oklch(21.9% 0.026 135.5) |
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 #151D11 | 17.27:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #151D11 | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #151D11 text on white | 17.27:1 | AAA | Lc 104.1 | Preferred for body text |
| #151D11 text on black | 1.21:1 | 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
#F4F6F3
oklch(97.1% 0.004 134.8)
-
Step 100
100
#E7EBE5
oklch(93.5% 0.009 134.9)
-
Step 200
200
#D4DCD1
oklch(88.5% 0.017 137)
-
Step 300
300
#B8C5B2
oklch(80.8% 0.03 135.6)
-
Step 400
400
#94A88A
oklch(70.8% 0.048 135.2)
-
Step 500
500
#79926D
oklch(63% 0.061 135.6)
-
Step 600
600
#627C55
oklch(55.5% 0.066 135.5)
-
Step 700
700
#516945
oklch(49.1% 0.062 135.6)
-
Step 800
800
#425639
oklch(42.8% 0.052 136.2)
-
Step 900
900
#384731
oklch(37.8% 0.041 135.9)
-
Step 950
950 (this color)
#151D11
oklch(21.9% 0.026 135.5)
#151D11 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) | #1E1B10 | 0.017 |
| Deuteranopia (no green cones) | #1D1A12 | 0.018 |
| Tritanopia (no blue cones) | #151C1A | 0.019 |
| Achromatopsia (no color) | #1B1B1B | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #151D11
#151D11
oklch(21.9% 0.026 135.5)
- #1F1722
#1F1722
oklch(21.9% 0.024 316.7)
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 #151D11, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.052
- Jet #212529 ΔE 0.053
- Dark #1B2431 ΔE 0.061
- Dark Brown #341C02 ΔE 0.062
- Rich Navy #001219 ΔE 0.063
- Almost Black #070D0D ΔE 0.070
- Dark Forest Green #002D04 ΔE 0.070
- Very Dark Green #062E03 ΔE 0.073
Use #151D11 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.