#37331D
Closest named color: Pakistan Green (#283618). oklch(31.9% 0.036 99.2), rgb(55, 51, 29).
Aa
White text reads best on this color (12.69:1).
About this color
#37331D is a dark, muted brown. In OKLCH its lightness is 32%, its chroma 0.036 and its hue 99°. Its hue sits on the warm side of the wheel. The nearest named color is Pakistan Green (#283618), ΔE 0.029 away. White text reads best on it, at 12.69:1.
| Hue family | Browns |
| Lightness | dark (32%) |
| Chroma | muted (0.036) |
| Temperature | warm |
| Nearest name | Pakistan Green (#283618) |
| Black text | 1.65:1 |
| White text | 12.69:1 |
Values
| HEX | #37331D |
| RGB | rgb(55, 51, 29) |
| HSL | hsl(51, 31%, 16%) |
| OKLCH | oklch(31.9% 0.036 99.2) |
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 #37331D | 12.69:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #37331D | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #37331D text on white | 12.69:1 | AAA | Lc 98.7 | Preferred for body text |
| #37331D text on black | 1.65:1 | 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 950.
-
Step 50
50
#F6F6F1
oklch(97.2% 0.007 106.5)
-
Step 100
100
#ECEAE1
oklch(93.6% 0.012 96.4)
-
Step 200
200
#DDDAC8
oklch(88.6% 0.024 99.1)
-
Step 300
300
#C7C2A2
oklch(81% 0.044 100)
-
Step 400
400
#ABA270
oklch(70.8% 0.069 99.2)
-
Step 500
500
#968A49
oklch(63% 0.087 99.1)
-
Step 600
600
#81742A
oklch(55.6% 0.095 99.3)
-
Step 700
700
#6D611C
oklch(49% 0.088 99.2)
-
Step 800
800
#594F1A
oklch(42.6% 0.073 98.5)
-
Step 900
900
#49421C
oklch(37.7% 0.057 99)
-
Step 950
950 (this color)
#37331D
oklch(31.9% 0.036 99.2)
#37331D 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) | #37321B | 0.004 |
| Deuteranopia (no green cones) | #38331E | 0.003 |
| Tritanopia (no blue cones) | #3B302E | 0.034 |
| Achromatopsia (no color) | #333333 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37331D
#37331D
oklch(31.9% 0.036 99.2)
- #2E3145
#2E3145
oklch(31.9% 0.036 277.6)
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 #37331D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pakistan Green #283618 ΔE 0.029
- Dark Olive #373E02 ΔE 0.052
- Onyx #343A40 ΔE 0.055
- Gunmetal #293241 ΔE 0.065
- Charcoal Grey #3C4142 ΔE 0.065
- Jet #212529 ΔE 0.072
- Dark Brown #341C02 ΔE 0.073
- Chocolate Brown #411900 ΔE 0.075
Use #37331D 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.