#373E2A
Closest named color: Charcoal Grey (#3C4142). oklch(35.1% 0.034 123.8), rgb(55, 62, 42).
Aa
White text reads best on this color (11.14:1).
About this color
#373E2A is a dark, muted brown. In OKLCH its lightness is 35%, its chroma 0.034 and its hue 124°. 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 11.14:1.
| Hue family | Browns |
| Lightness | dark (35%) |
| Chroma | muted (0.034) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.88:1 |
| White text | 11.14:1 |
Values
| HEX | #373E2A |
| RGB | rgb(55, 62, 42) |
| HSL | hsl(81, 19%, 20%) |
| OKLCH | oklch(35.1% 0.034 123.8) |
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 #373E2A | 11.14:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #373E2A | 1.88:1 | Fails | Lc 8.1 | Not readable |
| #373E2A text on white | 11.14:1 | AAA | Lc 95.8 | Preferred for body text |
| #373E2A text on black | 1.88:1 | 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
#BDC4B2
oklch(81% 0.026 124.3)
-
Step 400
400
#9BA589
oklch(70.6% 0.041 123.4)
-
Step 500
500
#838F6C
oklch(63.1% 0.052 123.3)
-
Step 600
600
#6C7954
oklch(55.5% 0.057 123.9)
-
Step 700
700
#5A6644
oklch(49.1% 0.054 124.1)
-
Step 800
800
#4A5338
oklch(42.6% 0.044 123.2)
-
Step 900
900 (this color)
#373E2A
oklch(35.1% 0.034 123.8)
-
Step 950
950
#24281D
oklch(26.9% 0.02 124)
#373E2A 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) | #403C29 | 0.016 |
| Deuteranopia (no green cones) | #3F3B2B | 0.017 |
| Tritanopia (no blue cones) | #383C39 | 0.028 |
| Achromatopsia (no color) | #3B3B3B | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #373E2A
#373E2A
oklch(35.1% 0.034 123.8)
- #3F364A
#3F364A
oklch(35.1% 0.036 305.1)
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 #373E2A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.040
- Pakistan Green #283618 ΔE 0.044
- Onyx #343A40 ΔE 0.044
- Dark Olive #373E02 ΔE 0.044
- Evergreen #05472A ΔE 0.055
- Pine Green #0A481E ΔE 0.063
- Charcoal #264653 ΔE 0.066
- Dark Slate Gray #2F4F4F ΔE 0.067
Use #373E2A 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.