#18521B
Closest named color: Forest (#0B5509). oklch(38.8% 0.105 144), rgb(24, 82, 27).
Aa
White text reads best on this color (9.28:1).
About this color
#18521B is a dark, moderately saturated green. In OKLCH its lightness is 39%, its chroma 0.105 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest (#0B5509), ΔE 0.021 away. White text reads best on it, at 9.28:1.
| Hue family | Greens |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.105) |
| Temperature | in between |
| Nearest name | Forest (#0B5509) |
| Black text | 2.26:1 |
| White text | 9.28:1 |
Values
| HEX | #18521B |
| RGB | rgb(24, 82, 27) |
| HSL | hsl(123, 55%, 21%) |
| OKLCH | oklch(38.8% 0.105 144) |
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 #18521B | 9.28:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #18521B | 2.26:1 | Fails | Lc 12.9 | Not readable |
| #18521B text on white | 9.28:1 | AAA | Lc 91.1 | Preferred for body text |
| #18521B text on black | 2.26:1 | Fails | Lc -11.2 | 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 900.
-
Step 50
50
#F1F7F1
oklch(97% 0.01 145.5)
-
Step 100
100
#E1EEE1
oklch(93.6% 0.022 145.4)
-
Step 200
200
#C9E1C7
oklch(88.5% 0.043 143.1)
-
Step 300
300
#A2CEA1
oklch(80.8% 0.078 144.3)
-
Step 400
400
#6DB56D
oklch(70.8% 0.126 144.1)
-
Step 500
500
#40A144
oklch(63% 0.16 144.1)
-
Step 600
600
#108B20
oklch(55.5% 0.174 144)
-
Step 700
700
#007615
oklch(49.1% 0.159 144)
-
Step 800
800
#076013
oklch(42.6% 0.134 144)
-
Step 900
900 (this color)
#18521B
oklch(38.8% 0.105 144)
-
Step 950
950
#0E2E0F
oklch(26.8% 0.066 144)
#18521B 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) | #544A15 | 0.078 |
| Deuteranopia (no green cones) | #4D4520 | 0.078 |
| Tritanopia (no blue cones) | #0A5046 | 0.064 |
| Achromatopsia (no color) | #474747 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18521B
#18521B
oklch(38.8% 0.105 144)
- #5F2E63
#5F2E63
oklch(38.8% 0.104 324.5)
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 #18521B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest #0B5509 ΔE 0.021
- Deep Green #02590F ΔE 0.029
- Navy Green #35530A ΔE 0.029
- Bottle Green #044A05 ΔE 0.034
- Darkgreen #054907 ΔE 0.036
- Pine Green #0A481E ΔE 0.037
- British Racing Green #05480D ΔE 0.038
- Spruce #0A5F38 ΔE 0.047
Use #18521B 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.