#1B4B2A
Closest named color: Evergreen (#05472A). oklch(37% 0.077 151.1), rgb(27, 75, 42).
Aa
White text reads best on this color (10.06:1).
About this color
#1B4B2A is a dark, moderately saturated green. In OKLCH its lightness is 37%, its chroma 0.077 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Evergreen (#05472A), ΔE 0.021 away. White text reads best on it, at 10.06:1.
| Hue family | Greens |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.077) |
| Temperature | in between |
| Nearest name | Evergreen (#05472A) |
| Black text | 2.08:1 |
| White text | 10.06:1 |
Values
| HEX | #1B4B2A |
| RGB | rgb(27, 75, 42) |
| HSL | hsl(139, 47%, 20%) |
| OKLCH | oklch(37% 0.077 151.1) |
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 #1B4B2A | 10.06:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #1B4B2A | 2.08:1 | Fails | Lc 10.8 | Not readable |
| #1B4B2A text on white | 10.06:1 | AAA | Lc 93.1 | Preferred for body text |
| #1B4B2A text on black | 2.08:1 | Fails | Lc -9.3 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EDE4
oklch(93.5% 0.017 151.1)
-
Step 200
200
#CBE0CF
oklch(88.6% 0.032 151.1)
-
Step 300
300
#A6CCAE
oklch(80.9% 0.058 151.2)
-
Step 400
400
#75B183
oklch(70.7% 0.092 150.9)
-
Step 500
500
#4C9D64
oklch(63% 0.117 151.4)
-
Step 600
600
#2A884B
oklch(55.7% 0.128 151.2)
-
Step 700
700
#1B733C
oklch(49.1% 0.119 151.2)
-
Step 800
800
#1A5E32
oklch(42.8% 0.099 151.3)
-
Step 900
900 (this color)
#1B4B2A
oklch(37% 0.077 151.1)
-
Step 950
950
#122D1A
oklch(27% 0.049 151.5)
#1B4B2A 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) | #4B4528 | 0.064 |
| Deuteranopia (no green cones) | #45402C | 0.064 |
| Tritanopia (no blue cones) | #0E4A43 | 0.041 |
| Achromatopsia (no color) | #424242 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B4B2A
#1B4B2A
oklch(37% 0.077 151.1)
- #572F52
#572F52
oklch(37% 0.078 331.7)
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 #1B4B2A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Evergreen #05472A ΔE 0.021
- Pine Green #0A481E ΔE 0.023
- British Racing Green #05480D ΔE 0.039
- Forrest Green #154406 ΔE 0.043
- Darkgreen #054907 ΔE 0.043
- Bottle Green #044A05 ΔE 0.044
- Dark Blue Green #005249 ΔE 0.046
- Racing Green #014600 ΔE 0.050
Use #1B4B2A 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.