#372F39
Closest named color: Gunmetal (#293241). oklch(31.8% 0.021 319.5), rgb(55, 47, 57).
Aa
White text reads best on this color (12.89:1).
About this color
#372F39 is a dark close to neutral grey. In OKLCH its lightness is 32%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.026 away. White text reads best on it, at 12.89:1.
| Hue family | Neutrals |
| Lightness | dark (32%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.62:1 |
| White text | 12.89:1 |
Values
| HEX | #372F39 |
| RGB | rgb(55, 47, 57) |
| HSL | hsl(288, 10%, 20%) |
| OKLCH | oklch(31.8% 0.021 319.5) |
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 #372F39 | 12.89:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #372F39 | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #372F39 text on white | 12.89:1 | AAA | Lc 99.1 | Preferred for body text |
| #372F39 text on black | 1.62:1 | 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
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#ECE8ED
oklch(93.6% 0.008 319.4)
-
Step 200
200
#DDD6DF
oklch(88.4% 0.014 318.7)
-
Step 300
300
#C8BCCB
oklch(81% 0.025 319.5)
-
Step 400
400
#AC99B0
oklch(70.7% 0.039 320.4)
-
Step 500
500
#97809D
oklch(63.1% 0.05 319.2)
-
Step 600
600
#826988
oklch(55.6% 0.056 319.7)
-
Step 700
700
#6E5873
oklch(49.2% 0.05 320)
-
Step 800
800
#59485E
oklch(42.8% 0.042 318.5)
-
Step 900
900
#493C4D
oklch(37.6% 0.033 318.2)
-
Step 950
950 (this color)
#372F39
oklch(31.8% 0.021 319.5)
#372F39 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) | #2E3139 | 0.017 |
| Deuteranopia (no green cones) | #303239 | 0.015 |
| Tritanopia (no blue cones) | #373032 | 0.014 |
| Achromatopsia (no color) | #323232 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #372F39
#372F39
oklch(31.8% 0.021 319.5)
- #2D352B
#2D352B
oklch(31.8% 0.021 139.4)
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 #372F39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.026
- Space Cadet #2B2D42 ΔE 0.029
- Onyx #343A40 ΔE 0.034
- Dark Blue Grey #1F3B4D ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.058
- Jet #212529 ΔE 0.059
- Oxford Blue #1B263B ΔE 0.060
- Prussian Blue #1D3557 ΔE 0.062
Use #372F39 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.