#25100F
Closest named color: Very Dark Brown (#1D0200). oklch(20.4% 0.036 23.5), rgb(37, 16, 15).
Aa
White text reads best on this color (18.10:1).
About this color
#25100F is a very dark, muted red. In OKLCH its lightness is 20%, its chroma 0.036 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.057 away. White text reads best on it, at 18.10:1.
| Hue family | Reds |
| Lightness | very dark (20%) |
| Chroma | muted (0.036) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.15:1 |
| White text | 18.10:1 |
Values
| HEX | #25100F |
| RGB | rgb(37, 16, 15) |
| HSL | hsl(3, 42%, 10%) |
| OKLCH | oklch(20.4% 0.036 23.5) |
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 #25100F | 18.10:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #25100F | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #25100F text on white | 18.10:1 | AAA | Lc 104.7 | Preferred for body text |
| #25100F text on black | 1.15:1 | 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
#F2E7E6
oklch(93.6% 0.012 23.7)
-
Step 200
200
#E8D4D2
oklch(88.6% 0.022 24.5)
-
Step 300
300
#DBB7B4
oklch(81% 0.042 23.7)
-
Step 400
400
#C7908D
oklch(70.6% 0.067 22.4)
-
Step 500
500
#B87470
oklch(63% 0.087 23.5)
-
Step 600
600
#A35C59
oklch(55.6% 0.094 23.1)
-
Step 700
700
#8C4C49
oklch(49.3% 0.087 23.5)
-
Step 800
800
#713E3C
oklch(42.6% 0.072 22.9)
-
Step 900
900
#5C3533
oklch(37.6% 0.057 23.3)
-
Step 950
950 (this color)
#25100F
oklch(20.4% 0.036 23.5)
#25100F 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) | #15130F | 0.036 |
| Deuteranopia (no green cones) | #1A180F | 0.035 |
| Tritanopia (no blue cones) | #290D10 | 0.013 |
| Achromatopsia (no color) | #161616 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25100F
#25100F
oklch(20.4% 0.036 23.5)
- #001B1E
#001B1E
oklch(20.3% 0.035 204.8)
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 #25100F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.057
- Dark Maroon #3C0008 ΔE 0.059
- Dark Brown #341C02 ΔE 0.061
- Rich Black #0D1B2A ΔE 0.066
- Deep Brown #410200 ΔE 0.068
- Almost Black #070D0D ΔE 0.069
- Jet #212529 ΔE 0.072
- Rich Navy #001219 ΔE 0.075
Use #25100F 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.