#37352A
Closest named color: Onyx (#343A40). oklch(32.7% 0.019 98.8), rgb(55, 53, 42).
Aa
White text reads best on this color (12.31:1).
About this color
#37352A is a dark close to neutral grey. In OKLCH its lightness is 33%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.036 away. White text reads best on it, at 12.31:1.
| Hue family | Neutrals |
| Lightness | dark (33%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.70:1 |
| White text | 12.31:1 |
Values
| HEX | #37352A |
| RGB | rgb(55, 53, 42) |
| HSL | hsl(51, 13%, 19%) |
| OKLCH | oklch(32.7% 0.019 98.8) |
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 #37352A | 12.31:1 | AAA | Lc -101.5 | Preferred for body text |
| Black text on #37352A | 1.70:1 | Fails | Lc 0.0 | Not readable |
| #37352A text on white | 12.31:1 | AAA | Lc 98.1 | Preferred for body text |
| #37352A text on black | 1.70:1 | 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
#EAEAE7
oklch(93.6% 0.004 106.5)
-
Step 200
200
#DAD9D3
oklch(88.4% 0.008 98.9)
-
Step 300
300
#C3C1B7
oklch(81% 0.014 97.5)
-
Step 400
400
#A4A191
oklch(70.7% 0.023 98.2)
-
Step 500
500
#8E8A76
oklch(63.1% 0.029 97.8)
-
Step 600
600
#78745F
oklch(55.7% 0.032 98.4)
-
Step 700
700
#65614E
oklch(49.1% 0.029 97.5)
-
Step 800
800
#524F40
oklch(42.6% 0.024 97.9)
-
Step 900
900 (this color)
#37352A
oklch(32.7% 0.019 98.8)
-
Step 950
950
#282720
oklch(27.1% 0.013 100.5)
#37352A 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) | #373429 | 0.003 |
| Deuteranopia (no green cones) | #38352A | 0.002 |
| Tritanopia (no blue cones) | #393332 | 0.018 |
| Achromatopsia (no color) | #353535 | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37352A
#37352A
oklch(32.7% 0.019 98.8)
- #32343F
#32343F
oklch(32.8% 0.02 277.1)
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 #37352A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.036
- Pakistan Green #283618 ΔE 0.041
- Charcoal Grey #3C4142 ΔE 0.049
- Gunmetal #293241 ΔE 0.049
- Space Cadet #2B2D42 ΔE 0.061
- Dark Olive #373E02 ΔE 0.063
- Dark Blue Grey #1F3B4D ΔE 0.063
- Jet #212529 ΔE 0.071
Use #37352A 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.