#18251E
Closest named color: Jet (#212529). oklch(25% 0.022 160.7), rgb(24, 37, 30).
Aa
White text reads best on this color (15.88:1).
About this color
#18251E is a very dark close to neutral grey. In OKLCH its lightness is 25%, its chroma 0.022. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.027 away. White text reads best on it, at 15.88:1.
| Hue family | Neutrals |
| Lightness | very dark (25%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.32:1 |
| White text | 15.88:1 |
Values
| HEX | #18251E |
| RGB | rgb(24, 37, 30) |
| HSL | hsl(148, 21%, 12%) |
| OKLCH | oklch(25% 0.022 160.7) |
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 #18251E | 15.88:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #18251E | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #18251E text on white | 15.88:1 | AAA | Lc 102.8 | Preferred for body text |
| #18251E text on black | 1.32:1 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D1DCD6
oklch(88.4% 0.014 162.4)
-
Step 300
300
#B3C6BB
oklch(80.9% 0.026 160.4)
-
Step 400
400
#8AA998
oklch(70.6% 0.042 161.1)
-
Step 500
500
#6C947F
oklch(63.1% 0.054 161.4)
-
Step 600
600
#547E68
oklch(55.5% 0.058 160.9)
-
Step 700
700
#446B56
oklch(49.2% 0.056 159.9)
-
Step 800
800
#385747
oklch(42.7% 0.046 161.2)
-
Step 900
900
#31483B
oklch(37.8% 0.036 159.3)
-
Step 950
950 (this color)
#18251E
oklch(25% 0.022 160.7)
#18251E 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) | #25231E | 0.022 |
| Deuteranopia (no green cones) | #22221E | 0.019 |
| Tritanopia (no blue cones) | #152523 | 0.010 |
| Achromatopsia (no color) | #222222 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18251E
#18251E
oklch(25% 0.022 160.7)
- #291D25
#291D25
oklch(24.9% 0.023 339.1)
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 #18251E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.027
- Dark #1B2431 ΔE 0.039
- Rich Black #0D1B2A ΔE 0.053
- Oxford Blue #1B263B ΔE 0.055
- Dark Brown #341C02 ΔE 0.061
- Dark Forest Green #002D04 ΔE 0.062
- Very Dark Green #062E03 ΔE 0.063
- Pakistan Green #283618 ΔE 0.071
Use #18251E 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.