#10251D
Closest named color: Jet (#212529). oklch(24.4% 0.031 167.1), rgb(16, 37, 29).
Aa
White text reads best on this color (16.09:1).
About this color
#10251D is a very dark, muted green. In OKLCH its lightness is 24%, its chroma 0.031 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jet (#212529), ΔE 0.036 away. White text reads best on it, at 16.09:1.
| Hue family | Greens |
| Lightness | very dark (24%) |
| Chroma | muted (0.031) |
| Temperature | in between |
| Nearest name | Jet (#212529) |
| Black text | 1.30:1 |
| White text | 16.09:1 |
Values
| HEX | #10251D |
| RGB | rgb(16, 37, 29) |
| HSL | hsl(157, 40%, 10%) |
| OKLCH | oklch(24.4% 0.031 167.1) |
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 #10251D | 16.09:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #10251D | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #10251D text on white | 16.09:1 | AAA | Lc 103.0 | Preferred for body text |
| #10251D text on black | 1.30:1 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECE8
oklch(93.5% 0.011 167.8)
-
Step 200
200
#CDDED6
oklch(88.6% 0.021 166)
-
Step 300
300
#ABC9BC
oklch(81% 0.037 167.4)
-
Step 400
400
#7CAD99
oklch(70.7% 0.06 167.5)
-
Step 500
500
#599880
oklch(63% 0.075 167.6)
-
Step 600
600
#3C8369
oklch(55.6% 0.083 166.9)
-
Step 700
700
#2D6F57
oklch(49.2% 0.078 166.4)
-
Step 800
800
#275A48
oklch(42.7% 0.063 167.7)
-
Step 900
900
#254A3C
oklch(37.7% 0.049 167.1)
-
Step 950
950 (this color)
#10251D
oklch(24.4% 0.031 167.1)
#10251D 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) | #24221D | 0.032 |
| Deuteranopia (no green cones) | #21201E | 0.031 |
| Tritanopia (no blue cones) | #0A2523 | 0.012 |
| Achromatopsia (no color) | #212121 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #10251D
#10251D
oklch(24.4% 0.031 167.1)
- #2B1A23
#2B1A23
oklch(24.3% 0.031 346.6)
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 #10251D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.036
- Dark #1B2431 ΔE 0.044
- Rich Black #0D1B2A ΔE 0.052
- Dark Forest Green #002D04 ΔE 0.057
- Very Dark Green #062E03 ΔE 0.059
- Oxford Blue #1B263B ΔE 0.061
- Dark Brown #341C02 ΔE 0.069
- Pakistan Green #283618 ΔE 0.076
Use #10251D 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.