#185B21
Closest named color: Deep Green (#02590F). oklch(41.6% 0.112 145.3), rgb(24, 91, 33).
Aa
White text reads best on this color (8.21:1).
About this color
#185B21 is a dark, moderately saturated green. In OKLCH its lightness is 42%, its chroma 0.112 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Green (#02590F), ΔE 0.021 away. White text reads best on it, at 8.21:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.112) |
| Temperature | in between |
| Nearest name | Deep Green (#02590F) |
| Black text | 2.55:1 |
| White text | 8.21:1 |
Values
| HEX | #185B21 |
| RGB | rgb(24, 91, 33) |
| HSL | hsl(128, 58%, 23%) |
| OKLCH | oklch(41.6% 0.112 145.3) |
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 #185B21 | 8.21:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #185B21 | 2.55:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #185B21 text on white | 8.21:1 | AAA | Lc 88.0 | Fine for body text |
| #185B21 text on black | 2.55:1 | Fails | Lc -14.1 | 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 800.
-
Step 50
50
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E2EDE2
oklch(93.5% 0.019 145.4)
-
Step 200
200
#CBE0CB
oklch(88.5% 0.036 145.3)
-
Step 300
300
#A7CCA7
oklch(80.8% 0.065 144.9)
-
Step 400
400
#75B278
oklch(70.7% 0.105 145.5)
-
Step 500
500
#4E9E54
oklch(63% 0.134 145.3)
-
Step 600
600
#2D8938
oklch(55.7% 0.146 145.2)
-
Step 700
700
#1E742A
oklch(49.2% 0.136 145.2)
-
Step 800
800 (this color)
#185B21
oklch(41.6% 0.112 145.3)
-
Step 900
900
#1E4D22
oklch(37.6% 0.087 145.2)
-
Step 950
950
#132D15
oklch(26.9% 0.054 145.5)
#185B21 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) | #5D521B | 0.085 |
| Deuteranopia (no green cones) | #554D26 | 0.084 |
| Tritanopia (no blue cones) | #02594E | 0.067 |
| Achromatopsia (no color) | #4F4F4F | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #185B21
#185B21
oklch(41.6% 0.112 145.3)
- #69336D
#69336D
oklch(41.5% 0.112 324.7)
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 #185B21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Green #02590F ΔE 0.021
- Spruce #0A5F38 ΔE 0.028
- Forest #0B5509 ΔE 0.028
- Pine #2B5D34 ΔE 0.031
- Navy Green #35530A ΔE 0.032
- Dark Green #006400 ΔE 0.042
- Army Green #4B5D16 ΔE 0.054
- Camouflage Green #4B6113 ΔE 0.059
Use #185B21 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.