#37401E
Closest named color: Dark Olive (#373E02). oklch(35.4% 0.055 121.4), rgb(55, 64, 30).
Aa
White text reads best on this color (10.96:1).
About this color
#37401E is a dark, muted brown. In OKLCH its lightness is 35%, its chroma 0.055 and its hue 121°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.025 away. White text reads best on it, at 10.96:1.
| Hue family | Browns |
| Lightness | dark (35%) |
| Chroma | muted (0.055) |
| Temperature | in between |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.91:1 |
| White text | 10.96:1 |
Values
| HEX | #37401E |
| RGB | rgb(55, 64, 30) |
| HSL | hsl(76, 36%, 18%) |
| OKLCH | oklch(35.4% 0.055 121.4) |
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 #37401E | 10.96:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #37401E | 1.91:1 | Fails | Lc 8.5 | Not readable |
| #37401E text on white | 10.96:1 | AAA | Lc 95.4 | Preferred for body text |
| #37401E text on black | 1.91:1 | 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
#F5F6F2
oklch(97.1% 0.005 117.9)
-
Step 100
100
#E8EBE3
oklch(93.6% 0.011 123.5)
-
Step 200
200
#D6DCCB
oklch(88.5% 0.024 122.8)
-
Step 300
300
#BCC5A8
oklch(80.9% 0.041 121.3)
-
Step 400
400
#9AA779
oklch(70.6% 0.066 120.9)
-
Step 500
500
#819257
oklch(63.2% 0.084 122)
-
Step 600
600
#6B7C3B
oklch(55.7% 0.092 121.6)
-
Step 700
700
#59682D
oklch(49.1% 0.085 121.5)
-
Step 800
800
#495527
oklch(42.7% 0.07 121.5)
-
Step 900
900 (this color)
#37401E
oklch(35.4% 0.055 121.4)
-
Step 950
950
#242916
oklch(27% 0.034 120.7)
#37401E 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) | #443D1B | 0.022 |
| Deuteranopia (no green cones) | #423C20 | 0.023 |
| Tritanopia (no blue cones) | #3A3D38 | 0.046 |
| Achromatopsia (no color) | #3C3C3C | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37401E
#37401E
oklch(35.4% 0.055 121.4)
- #413554
#413554
oklch(35.6% 0.055 301.5)
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 #37401E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.025
- Pakistan Green #283618 ΔE 0.043
- Evergreen #05472A ΔE 0.048
- Pine Green #0A481E ΔE 0.051
- Forrest Green #154406 ΔE 0.055
- Charcoal Grey #3C4142 ΔE 0.058
- Hunter Green #0B4008 ΔE 0.060
- British Racing Green #05480D ΔE 0.062
Use #37401E 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.