#18271B
Closest named color: Jet (#212529). oklch(25.5% 0.03 150), rgb(24, 39, 27).
Aa
White text reads best on this color (15.61:1).
About this color
#18271B is a dark, muted green. In OKLCH its lightness is 25%, its chroma 0.030 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jet (#212529), ΔE 0.034 away. White text reads best on it, at 15.61:1.
| Hue family | Greens |
| Lightness | dark (25%) |
| Chroma | muted (0.030) |
| Temperature | in between |
| Nearest name | Jet (#212529) |
| Black text | 1.34:1 |
| White text | 15.61:1 |
Values
| HEX | #18271B |
| RGB | rgb(24, 39, 27) |
| HSL | hsl(132, 24%, 12%) |
| OKLCH | oklch(25.5% 0.03 150) |
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 #18271B | 15.61:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #18271B | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #18271B text on white | 15.61:1 | AAA | Lc 102.5 | Preferred for body text |
| #18271B text on black | 1.34:1 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E5ECE6
oklch(93.6% 0.011 149.9)
-
Step 200
200
#D0DDD2
oklch(88.5% 0.02 150.1)
-
Step 300
300
#B1C8B5
oklch(81% 0.036 150.4)
-
Step 400
400
#87AB8E
oklch(70.6% 0.058 150.5)
-
Step 500
500
#699672
oklch(63% 0.073 150.1)
-
Step 600
600
#50815A
oklch(55.7% 0.08 149.7)
-
Step 700
700
#406D4A
oklch(49.2% 0.075 150)
-
Step 800
800
#35593D
oklch(42.8% 0.062 150.2)
-
Step 900
900
#2F4934
oklch(37.8% 0.048 149.7)
-
Step 950
950 (this color)
#18271B
oklch(25.5% 0.03 150)
#18271B 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) | #27251A | 0.025 |
| Deuteranopia (no green cones) | #25231C | 0.026 |
| Tritanopia (no blue cones) | #162624 | 0.018 |
| Achromatopsia (no color) | #242424 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18271B
#18271B
oklch(25.5% 0.03 150)
- #2B1D2A
#2B1D2A
oklch(25.4% 0.032 328.9)
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 #18271B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.034
- Dark #1B2431 ΔE 0.047
- Dark Forest Green #002D04 ΔE 0.053
- Very Dark Green #062E03 ΔE 0.053
- Dark Brown #341C02 ΔE 0.060
- Oxford Blue #1B263B ΔE 0.063
- Pakistan Green #283618 ΔE 0.063
- Rich Black #0D1B2A ΔE 0.063
Use #18271B 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.