#3D372C
Closest named color: Onyx (#343A40). oklch(34% 0.02 82.7), rgb(61, 55, 44).
Aa
White text reads best on this color (11.78:1).
About this color
#3D372C is a dark close to neutral grey. In OKLCH its lightness is 34%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.034 away. White text reads best on it, at 11.78:1.
| Hue family | Neutrals |
| Lightness | dark (34%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.78:1 |
| White text | 11.78:1 |
Values
| HEX | #3D372C |
| RGB | rgb(61, 55, 44) |
| HSL | hsl(39, 16%, 21%) |
| OKLCH | oklch(34% 0.02 82.7) |
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 #3D372C | 11.78:1 | AAA | Lc -100.7 | Preferred for body text |
| Black text on #3D372C | 1.78:1 | Fails | Lc 0.0 | Not readable |
| #3D372C text on white | 11.78:1 | AAA | Lc 97.1 | Preferred for body text |
| #3D372C text on black | 1.78:1 | 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
#F6F5F4
oklch(97.1% 0.002 67.8)
-
Step 100
100
#EBEAE7
oklch(93.7% 0.004 91.4)
-
Step 200
200
#DCD9D3
oklch(88.6% 0.009 84.6)
-
Step 300
300
#C5C0B6
oklch(80.9% 0.015 84.6)
-
Step 400
400
#A8A090
oklch(70.8% 0.025 84.6)
-
Step 500
500
#938875
oklch(63.1% 0.031 81.4)
-
Step 600
600
#7D725D
oklch(55.6% 0.034 83.5)
-
Step 700
700
#6A5F4D
oklch(49.1% 0.031 80)
-
Step 800
800
#564E3F
oklch(42.7% 0.026 83.1)
-
Step 900
900 (this color)
#3D372C
oklch(34% 0.02 82.7)
-
Step 950
950
#2A261F
oklch(27.1% 0.014 81.7)
#3D372C 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) | #3A372B | 0.006 |
| Deuteranopia (no green cones) | #3B382C | 0.005 |
| Tritanopia (no blue cones) | #403534 | 0.018 |
| Achromatopsia (no color) | #383838 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D372C
#3D372C
oklch(34% 0.02 82.7)
- #323843
#323843
oklch(34% 0.021 262.6)
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 #3D372C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.034
- Charcoal Grey #3C4142 ΔE 0.040
- Pakistan Green #283618 ΔE 0.050
- Gunmetal #293241 ΔE 0.056
- Dark Olive #373E02 ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.066
- Space Cadet #2B2D42 ΔE 0.067
- Charcoal #264653 ΔE 0.071
Use #3D372C 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.