#31510D
Closest named color: Navy Green (#35530A). oklch(39.5% 0.1 132.1), rgb(49, 81, 13).
Aa
White text reads best on this color (9.07:1).
About this color
#31510D is a dark, moderately saturated green. In OKLCH its lightness is 40%, its chroma 0.100 and its hue 132°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Navy Green (#35530A), ΔE 0.009 away. White text reads best on it, at 9.07:1.
| Hue family | Greens |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.100) |
| Temperature | in between |
| Nearest name | Navy Green (#35530A) |
| Black text | 2.31:1 |
| White text | 9.07:1 |
Values
| HEX | #31510D |
| RGB | rgb(49, 81, 13) |
| HSL | hsl(88, 72%, 18%) |
| OKLCH | oklch(39.5% 0.1 132.1) |
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 #31510D | 9.07:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #31510D | 2.31:1 | Fails | Lc 13.3 | Not readable |
| #31510D text on white | 9.07:1 | AAA | Lc 90.7 | Preferred for body text |
| #31510D text on black | 2.31:1 | Fails | Lc -11.6 | 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
#F3F7F0
oklch(97.1% 0.01 131.4)
-
Step 100
100
#E4EDDE
oklch(93.5% 0.022 132.5)
-
Step 200
200
#CFDFC3
oklch(88.4% 0.041 131.7)
-
Step 300
300
#AFCB99
oklch(80.8% 0.075 131.7)
-
Step 400
400
#84B05F
oklch(70.6% 0.12 132.1)
-
Step 500
500
#659C2A
oklch(63.2% 0.154 132)
-
Step 600
600
#4F8500
oklch(55.7% 0.155 132.1)
-
Step 700
700
#417000
oklch(49.2% 0.137 132.3)
-
Step 800
800
#355B00
oklch(42.6% 0.118 131.9)
-
Step 900
900 (this color)
#31510D
oklch(39.5% 0.1 132.1)
-
Step 950
950
#1A2D08
oklch(27.1% 0.064 132.6)
#31510D 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) | #554A01 | 0.056 |
| Deuteranopia (no green cones) | #504814 | 0.055 |
| Tritanopia (no blue cones) | #324D44 | 0.076 |
| Achromatopsia (no color) | #484848 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31510D
#31510D
oklch(39.5% 0.1 132.1)
- #58346D
#58346D
oklch(39.5% 0.101 311.8)
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 #31510D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Green #35530A ΔE 0.009
- Forest #0B5509 ΔE 0.032
- Deep Green #02590F ΔE 0.038
- Pine #2B5D34 ΔE 0.047
- Bottle Green #044A05 ΔE 0.047
- Darkgreen #054907 ΔE 0.049
- British Racing Green #05480D ΔE 0.051
- Pine Green #0A481E ΔE 0.051
Use #31510D 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.