#251315
Closest named color: Rich Black (#0D1B2A). oklch(21.3% 0.03 12.7), rgb(37, 19, 21).
Aa
White text reads best on this color (17.75:1).
About this color
#251315 is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.057 away. White text reads best on it, at 17.75:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.18:1 |
| White text | 17.75:1 |
Values
| HEX | #251315 |
| RGB | rgb(37, 19, 21) |
| HSL | hsl(353, 32%, 11%) |
| OKLCH | oklch(21.3% 0.03 12.7) |
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 #251315 | 17.75:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #251315 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #251315 text on white | 17.75:1 | AAA | Lc 104.5 | Preferred for body text |
| #251315 text on black | 1.18:1 | 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
#F9F4F4
oklch(97.1% 0.005 17.2)
-
Step 100
100
#F1E7E8
oklch(93.6% 0.011 10.3)
-
Step 200
200
#E6D4D5
oklch(88.5% 0.02 13.7)
-
Step 300
300
#D7B8BA
oklch(81% 0.036 13.5)
-
Step 400
400
#C19297
oklch(70.6% 0.057 11.5)
-
Step 500
500
#B1777D
oklch(63.1% 0.073 12.6)
-
Step 600
600
#9C6066
oklch(55.7% 0.079 13.4)
-
Step 700
700
#854F55
oklch(49.2% 0.073 12.9)
-
Step 800
800
#6C4146
oklch(42.7% 0.06 12.4)
-
Step 900
900
#58373A
oklch(37.7% 0.047 13.6)
-
Step 950
950 (this color)
#251315
oklch(21.3% 0.03 12.7)
#251315 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) | #161615 | 0.033 |
| Deuteranopia (no green cones) | #1B1915 | 0.029 |
| Tritanopia (no blue cones) | #281114 | 0.008 |
| Achromatopsia (no color) | #181818 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #251315
#251315
oklch(21.3% 0.03 12.7)
- #051D1D
#051D1D
oklch(21.2% 0.03 195.1)
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 #251315, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.057
- Dark Brown #341C02 ΔE 0.059
- Jet #212529 ΔE 0.061
- Dark Maroon #3C0008 ΔE 0.062
- Dark #1B2431 ΔE 0.067
- Very Dark Brown #1D0200 ΔE 0.068
- Deep Brown #410200 ΔE 0.071
- Almost Black #070D0D ΔE 0.072
Use #251315 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.