#1B431B
Closest named color: Pine Green (#0A481E). oklch(34.3% 0.08 143.6), rgb(27, 67, 27).
Aa
White text reads best on this color (11.25:1).
About this color
#1B431B is a dark, moderately saturated green. In OKLCH its lightness is 34%, its chroma 0.080 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pine Green (#0A481E), ΔE 0.018 away. White text reads best on it, at 11.25:1.
| Hue family | Greens |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.080) |
| Temperature | in between |
| Nearest name | Pine Green (#0A481E) |
| Black text | 1.86:1 |
| White text | 11.25:1 |
Values
| HEX | #1B431B |
| RGB | rgb(27, 67, 27) |
| HSL | hsl(120, 43%, 18%) |
| OKLCH | oklch(34.3% 0.08 143.6) |
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 #1B431B | 11.25:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #1B431B | 1.86:1 | Fails | Lc 8.1 | Not readable |
| #1B431B text on white | 11.25:1 | AAA | Lc 95.8 | Preferred for body text |
| #1B431B text on black | 1.86:1 | 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 900.
-
Step 50
50
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E3EDE3
oklch(93.6% 0.017 145.4)
-
Step 200
200
#CDDFCB
oklch(88.5% 0.033 142.5)
-
Step 300
300
#AACBA8
oklch(80.8% 0.06 143.5)
-
Step 400
400
#7CB079
oklch(70.6% 0.096 143.2)
-
Step 500
500
#589C57
oklch(63% 0.122 143.7)
-
Step 600
600
#3B873B
oklch(55.7% 0.134 143.5)
-
Step 700
700
#2C722D
oklch(49.1% 0.125 143.6)
-
Step 800
800
#265D26
oklch(42.7% 0.104 143.5)
-
Step 900
900 (this color)
#1B431B
oklch(34.3% 0.08 143.6)
-
Step 950
950
#162D16
oklch(27.1% 0.051 144)
#1B431B 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) | #443D17 | 0.058 |
| Deuteranopia (no green cones) | #3F391E | 0.059 |
| Tritanopia (no blue cones) | #15413A | 0.051 |
| Achromatopsia (no color) | #3B3B3B | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B431B
#1B431B
oklch(34.3% 0.08 143.6)
- #4C2950
#4C2950
oklch(34.3% 0.079 323.3)
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 #1B431B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pine Green #0A481E ΔE 0.018
- Evergreen #05472A ΔE 0.021
- Forrest Green #154406 ΔE 0.023
- Hunter Green #0B4008 ΔE 0.026
- British Racing Green #05480D ΔE 0.029
- Darkgreen #054907 ΔE 0.035
- Racing Green #014600 ΔE 0.036
- Dark Olive #373E02 ΔE 0.037
Use #1B431B 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.