#02251B
Closest named color: Jet (#212529). oklch(23.6% 0.045 169.8), rgb(2, 37, 27).
Aa
White text reads best on this color (16.36:1).
About this color
#02251B is a very dark, muted green. In OKLCH its lightness is 24%, its chroma 0.045 and its hue 170°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jet (#212529), ΔE 0.051 away. White text reads best on it, at 16.36:1.
| Hue family | Greens |
| Lightness | very dark (24%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Jet (#212529) |
| Black text | 1.28:1 |
| White text | 16.36:1 |
Values
| HEX | #02251B |
| RGB | rgb(2, 37, 27) |
| HSL | hsl(163, 90%, 8%) |
| OKLCH | oklch(23.6% 0.045 169.8) |
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 #02251B | 16.36:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #02251B | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #02251B text on white | 16.36:1 | AAA | Lc 103.1 | Preferred for body text |
| #02251B text on black | 1.28:1 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDE8
oklch(93.6% 0.014 169.2)
-
Step 200
200
#C7E0D6
oklch(88.5% 0.03 169.6)
-
Step 300
300
#9FCCBB
oklch(80.8% 0.053 169.9)
-
Step 400
400
#67B298
oklch(70.7% 0.085 169.5)
-
Step 500
500
#339E7F
oklch(63% 0.108 169.8)
-
Step 600
600
#008869
oklch(55.7% 0.111 169.5)
-
Step 700
700
#007258
oklch(49.1% 0.097 169.9)
-
Step 800
800
#005E48
oklch(42.9% 0.085 169.8)
-
Step 900
900
#0A4D3C
oklch(37.6% 0.07 170.6)
-
Step 950
950 (this color)
#02251B
oklch(23.6% 0.045 169.8)
#02251B 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) | #24221A | 0.046 |
| Deuteranopia (no green cones) | #1F1E1C | 0.044 |
| Tritanopia (no blue cones) | #002522 | 0.013 |
| Achromatopsia (no color) | #202020 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #02251B
#02251B
oklch(23.6% 0.045 169.8)
- #2E1521
#2E1521
oklch(23.6% 0.045 350.9)
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 #02251B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.051
- Dark Forest Green #002D04 ΔE 0.052
- Very Dark Green #062E03 ΔE 0.055
- Dark #1B2431 ΔE 0.056
- Rich Black #0D1B2A ΔE 0.056
- Oxford Blue #1B263B ΔE 0.071
- Rich Navy #001219 ΔE 0.076
- Dark Brown #341C02 ΔE 0.081
Use #02251B 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.