#373D2A
Closest named color: Charcoal Grey (#3C4142). oklch(34.8% 0.033 122.3), rgb(55, 61, 42).
Aa
White text reads best on this color (11.26:1).
About this color
#373D2A is a dark, muted brown. In OKLCH its lightness is 35%, its chroma 0.033 and its hue 122°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.040 away. White text reads best on it, at 11.26:1.
| Hue family | Browns |
| Lightness | dark (35%) |
| Chroma | muted (0.033) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.86:1 |
| White text | 11.26:1 |
Values
| HEX | #373D2A |
| RGB | rgb(55, 61, 42) |
| HSL | hsl(79, 18%, 20%) |
| OKLCH | oklch(34.8% 0.033 122.3) |
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 #373D2A | 11.26:1 | AAA | Lc -99.8 | Preferred for body text |
| Black text on #373D2A | 1.86:1 | Fails | Lc 7.9 | Not readable |
| #373D2A text on white | 11.26:1 | AAA | Lc 96.0 | Preferred for body text |
| #373D2A text on black | 1.86:1 | 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
#F5F6F3
oklch(97.2% 0.004 121.6)
-
Step 100
100
#E9EBE5
oklch(93.7% 0.008 121.6)
-
Step 200
200
#D7DBD1
oklch(88.6% 0.014 124.6)
-
Step 300
300
#BEC3B2
oklch(80.8% 0.024 120.3)
-
Step 400
400
#9CA58A
oklch(70.7% 0.039 122.4)
-
Step 500
500
#848F6D
oklch(63.2% 0.051 122.4)
-
Step 600
600
#6E7955
oklch(55.7% 0.055 122)
-
Step 700
700
#5B6645
oklch(49.2% 0.052 123.3)
-
Step 800
800
#4B5339
oklch(42.8% 0.042 122.1)
-
Step 900
900 (this color)
#373D2A
oklch(34.8% 0.033 122.3)
-
Step 950
950
#25281D
oklch(27% 0.02 120.1)
#373D2A 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) | #3F3B29 | 0.014 |
| Deuteranopia (no green cones) | #3E3B2B | 0.014 |
| Tritanopia (no blue cones) | #393B38 | 0.027 |
| Achromatopsia (no color) | #3B3B3B | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #373D2A
#373D2A
oklch(34.8% 0.033 122.3)
- #3D3648
#3D3648
oklch(34.8% 0.032 302.5)
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 #373D2A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.040
- Onyx #343A40 ΔE 0.042
- Pakistan Green #283618 ΔE 0.042
- Dark Olive #373E02 ΔE 0.046
- Evergreen #05472A ΔE 0.057
- Pine Green #0A481E ΔE 0.065
- Charcoal #264653 ΔE 0.066
- Gunmetal #293241 ΔE 0.067
Use #373D2A 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.