#31390B
Closest named color: Dark Olive (#373E02). oklch(32.7% 0.067 118.9), rgb(49, 57, 11).
Aa
White text reads best on this color (12.20:1).
About this color
#31390B is a dark, muted brown. In OKLCH its lightness is 33%, its chroma 0.067 and its hue 119°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.022 away. White text reads best on it, at 12.20:1.
| Hue family | Browns |
| Lightness | dark (33%) |
| Chroma | muted (0.067) |
| Temperature | in between |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.72:1 |
| White text | 12.20:1 |
Values
| HEX | #31390B |
| RGB | rgb(49, 57, 11) |
| HSL | hsl(70, 68%, 13%) |
| OKLCH | oklch(32.7% 0.067 118.9) |
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 #31390B | 12.20:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #31390B | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #31390B text on white | 12.20:1 | AAA | Lc 97.8 | Preferred for body text |
| #31390B text on black | 1.72:1 | 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
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#E8EBE1
oklch(93.5% 0.014 120.3)
-
Step 200
200
#D7DCC8
oklch(88.5% 0.027 118.4)
-
Step 300
300
#BDC6A2
oklch(81% 0.05 118.9)
-
Step 400
400
#9BA86E
oklch(70.7% 0.081 118.8)
-
Step 500
500
#839246
oklch(63.1% 0.103 118.7)
-
Step 600
600
#6D7C26
oklch(55.6% 0.111 118.7)
-
Step 700
700
#5B6818
oklch(49% 0.103 118.5)
-
Step 800
800
#4A5517
oklch(42.6% 0.086 118.9)
-
Step 900
900 (this color)
#31390B
oklch(32.7% 0.067 118.9)
-
Step 950
950
#242910
oklch(26.9% 0.042 118.7)
#31390B 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) | #3D3505 | 0.023 |
| Deuteranopia (no green cones) | #3C360F | 0.022 |
| Tritanopia (no blue cones) | #343530 | 0.058 |
| Achromatopsia (no color) | #353535 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31390B
#31390B
oklch(32.7% 0.067 118.9)
- #392C52
#392C52
oklch(32.6% 0.067 298.4)
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 #31390B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.022
- Pakistan Green #283618 ΔE 0.023
- Hunter Green #0B4008 ΔE 0.047
- Forrest Green #154406 ΔE 0.049
- Pine Green #0A481E ΔE 0.055
- Evergreen #05472A ΔE 0.056
- British Racing Green #05480D ΔE 0.061
- Racing Green #014600 ΔE 0.063
Use #31390B 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.