#37390A
Closest named color: Dark Olive (#373E02). oklch(33.2% 0.065 111.9), rgb(55, 57, 10).
Aa
White text reads best on this color (11.98:1).
About this color
#37390A is a dark, muted brown. In OKLCH its lightness is 33%, its chroma 0.065 and its hue 112°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.019 away. White text reads best on it, at 11.98:1.
| Hue family | Browns |
| Lightness | dark (33%) |
| Chroma | muted (0.065) |
| Temperature | in between |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.75:1 |
| White text | 11.98:1 |
Values
| HEX | #37390A |
| RGB | rgb(55, 57, 10) |
| HSL | hsl(63, 70%, 13%) |
| OKLCH | oklch(33.2% 0.065 111.9) |
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 #37390A | 11.98:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #37390A | 1.75:1 | Fails | Lc 0.0 | Not readable |
| #37390A text on white | 11.98:1 | AAA | Lc 97.4 | Preferred for body text |
| #37390A text on black | 1.75:1 | 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
#EAEBE0
oklch(93.6% 0.015 110.9)
-
Step 200
200
#D9DBC7
oklch(88.4% 0.027 111.6)
-
Step 300
300
#C1C4A0
oklch(80.9% 0.049 111.4)
-
Step 400
400
#A1A66C
oklch(70.7% 0.079 112.4)
-
Step 500
500
#8B8F43
oklch(63% 0.1 111.7)
-
Step 600
600
#757920
oklch(55.5% 0.109 112)
-
Step 700
700
#636612
oklch(49.2% 0.101 111.7)
-
Step 800
800
#505313
oklch(42.6% 0.084 112.1)
-
Step 900
900 (this color)
#37390A
oklch(33.2% 0.065 111.9)
-
Step 950
950
#27280F
oklch(26.9% 0.041 110.9)
#37390A 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) | #3E3604 | 0.014 |
| Deuteranopia (no green cones) | #3E370E | 0.015 |
| Tritanopia (no blue cones) | #3B3530 | 0.058 |
| Achromatopsia (no color) | #373737 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37390A
#37390A
oklch(33.2% 0.065 111.9)
- #372F55
#372F55
oklch(33.3% 0.066 292.1)
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 #37390A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.019
- Pakistan Green #283618 ΔE 0.030
- Forrest Green #154406 ΔE 0.055
- Hunter Green #0B4008 ΔE 0.055
- Pine Green #0A481E ΔE 0.060
- Evergreen #05472A ΔE 0.061
- British Racing Green #05480D ΔE 0.066
- Racing Green #014600 ΔE 0.069
Use #37390A 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.