#18271C
Closest named color: Jet (#212529). oklch(25.5% 0.029 152.3), rgb(24, 39, 28).
Aa
White text reads best on this color (15.60:1).
About this color
#18271C is a dark close to neutral grey. In OKLCH its lightness is 26%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.032 away. White text reads best on it, at 15.60:1.
| Hue family | Neutrals |
| Lightness | dark (26%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.34:1 |
| White text | 15.60:1 |
Values
| HEX | #18271C |
| RGB | rgb(24, 39, 28) |
| HSL | hsl(136, 24%, 12%) |
| OKLCH | oklch(25.5% 0.029 152.3) |
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 #18271C | 15.60:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #18271C | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #18271C text on white | 15.60:1 | AAA | Lc 102.5 | Preferred for body text |
| #18271C 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
#E5ECE7
oklch(93.6% 0.01 155.1)
-
Step 200
200
#D0DDD3
oklch(88.5% 0.019 152.8)
-
Step 300
300
#B1C7B6
oklch(80.8% 0.034 152.3)
-
Step 400
400
#87AB90
oklch(70.7% 0.055 152.5)
-
Step 500
500
#699675
oklch(63.1% 0.07 152.4)
-
Step 600
600
#4F805D
oklch(55.5% 0.076 152.4)
-
Step 700
700
#406C4D
oklch(49% 0.07 152.6)
-
Step 800
800
#35583F
oklch(42.6% 0.058 152.4)
-
Step 900
900
#2E4936
oklch(37.8% 0.046 153.1)
-
Step 950
950 (this color)
#18271C
oklch(25.5% 0.029 152.3)
#18271C 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) | #27251B | 0.025 |
| Deuteranopia (no green cones) | #25231D | 0.026 |
| Tritanopia (no blue cones) | #162724 | 0.015 |
| Achromatopsia (no color) | #242424 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18271C
#18271C
oklch(25.5% 0.029 152.3)
- #2B1E29
#2B1E29
oklch(25.5% 0.028 331.7)
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 #18271C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.032
- Dark #1B2431 ΔE 0.045
- Dark Forest Green #002D04 ΔE 0.055
- Very Dark Green #062E03 ΔE 0.055
- Dark Brown #341C02 ΔE 0.060
- Oxford Blue #1B263B ΔE 0.061
- Rich Black #0D1B2A ΔE 0.062
- Pakistan Green #283618 ΔE 0.063
Use #18271C 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.