#1B4A10
Closest named color: British Racing Green (#05480D). oklch(36.3% 0.101 140.2), rgb(27, 74, 16).
Aa
White text reads best on this color (10.32:1).
About this color
#1B4A10 is a dark, moderately saturated green. In OKLCH its lightness is 36%, its chroma 0.101 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is British Racing Green (#05480D), ΔE 0.017 away. White text reads best on it, at 10.32:1.
| Hue family | Greens |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | British Racing Green (#05480D) |
| Black text | 2.03:1 |
| White text | 10.32:1 |
Values
| HEX | #1B4A10 |
| RGB | rgb(27, 74, 16) |
| HSL | hsl(109, 64%, 18%) |
| OKLCH | oklch(36.3% 0.101 140.2) |
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 #1B4A10 | 10.32:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #1B4A10 | 2.03:1 | Fails | Lc 10.2 | Not readable |
| #1B4A10 text on white | 10.32:1 | AAA | Lc 93.7 | Preferred for body text |
| #1B4A10 text on black | 2.03:1 | Fails | Lc -8.8 | 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E2EEE0
oklch(93.6% 0.023 141.2)
-
Step 200
200
#CBE0C6
oklch(88.4% 0.042 139.7)
-
Step 300
300
#A7CD9F
oklch(80.9% 0.075 140.2)
-
Step 400
400
#76B369
oklch(70.7% 0.122 140.1)
-
Step 500
500
#4F9F3E
oklch(63% 0.155 140.3)
-
Step 600
600
#2F8916
oklch(55.5% 0.168 140.2)
-
Step 700
700
#207404
oklch(49% 0.156 140.3)
-
Step 800
800
#1E5F0C
oklch(42.8% 0.13 140.2)
-
Step 900
900 (this color)
#1B4A10
oklch(36.3% 0.101 140.2)
-
Step 950
950
#132E0E
oklch(27.1% 0.064 140.6)
#1B4A10 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) | #4C4307 | 0.068 |
| Deuteranopia (no green cones) | #463F16 | 0.068 |
| Tritanopia (no blue cones) | #15473F | 0.069 |
| Achromatopsia (no color) | #404040 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B4A10
#1B4A10
oklch(36.3% 0.101 140.2)
- #55295E
#55295E
oklch(36.3% 0.101 320.6)
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 #1B4A10, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- British Racing Green #05480D ΔE 0.017
- Darkgreen #054907 ΔE 0.017
- Bottle Green #044A05 ΔE 0.018
- Pine Green #0A481E ΔE 0.020
- Forrest Green #154406 ΔE 0.022
- Racing Green #014600 ΔE 0.026
- Evergreen #05472A ΔE 0.036
- Hunter Green #0B4008 ΔE 0.038
Use #1B4A10 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.