#25131D
Closest named color: Rich Black (#0D1B2A). oklch(21.6% 0.034 345.9), rgb(37, 19, 29).
Aa
White text reads best on this color (17.65:1).
About this color
#25131D is a very dark, muted red. In OKLCH its lightness is 22%, its chroma 0.034 and its hue 346°. Its hue sits on the warm side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.051 away. White text reads best on it, at 17.65:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | muted (0.034) |
| Temperature | warm |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.18:1 |
| White text | 17.65:1 |
Values
| HEX | #25131D |
| RGB | rgb(37, 19, 29) |
| HSL | hsl(327, 32%, 11%) |
| OKLCH | oklch(21.6% 0.034 345.9) |
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 #25131D | 17.65:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #25131D | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #25131D text on white | 17.65:1 | AAA | Lc 104.4 | Preferred for body text |
| #25131D 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
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#F0E7EB
oklch(93.6% 0.011 348.4)
-
Step 200
200
#E5D3DC
oklch(88.4% 0.023 345.8)
-
Step 300
300
#D5B7C6
oklch(81% 0.04 346.4)
-
Step 400
400
#BF91A9
oklch(70.7% 0.064 346.2)
-
Step 500
500
#AE7594
oklch(63.1% 0.082 345.9)
-
Step 600
600
#995D7E
oklch(55.6% 0.09 346.3)
-
Step 700
700
#834C6B
oklch(49.1% 0.085 345.8)
-
Step 800
800
#6A3F57
oklch(42.7% 0.069 345.8)
-
Step 900
900
#563648
oklch(37.7% 0.053 345.2)
-
Step 950
950 (this color)
#25131D
oklch(21.6% 0.034 345.9)
#25131D 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) | #14171D | 0.037 |
| Deuteranopia (no green cones) | #191A1D | 0.033 |
| Tritanopia (no blue cones) | #271317 | 0.013 |
| Achromatopsia (no color) | #191919 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25131D
#25131D
oklch(21.6% 0.034 345.9)
- #081F16
#081F16
oklch(21.7% 0.034 165.1)
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 #25131D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.051
- Jet #212529 ΔE 0.059
- Dark #1B2431 ΔE 0.060
- Dark Maroon #3C0008 ΔE 0.066
- Dark Brown #341C02 ΔE 0.069
- Eggplant #380835 ΔE 0.070
- Very Dark Purple #2A0134 ΔE 0.070
- Oxford Blue #1B263B ΔE 0.074
Use #25131D 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.