#3A372C
Closest named color: Onyx (#343A40). oklch(33.6% 0.019 94.5), rgb(58, 55, 44).
Aa
White text reads best on this color (11.91:1).
About this color
#3A372C is a dark close to neutral grey. In OKLCH its lightness is 34%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.033 away. White text reads best on it, at 11.91:1.
| Hue family | Neutrals |
| Lightness | dark (34%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.76:1 |
| White text | 11.91:1 |
Values
| HEX | #3A372C |
| RGB | rgb(58, 55, 44) |
| HSL | hsl(47, 14%, 20%) |
| OKLCH | oklch(33.6% 0.019 94.5) |
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 #3A372C | 11.91:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #3A372C | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #3A372C text on white | 11.91:1 | AAA | Lc 97.3 | Preferred for body text |
| #3A372C text on black | 1.76:1 | 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
#DBD9D3
oklch(88.5% 0.008 91.5)
-
Step 300
300
#C3C1B7
oklch(81% 0.014 97.5)
-
Step 400
400
#A5A191
oklch(70.8% 0.023 95.4)
-
Step 500
500
#8F8A76
oklch(63.2% 0.03 95.5)
-
Step 600
600
#79735F
oklch(55.5% 0.031 93.3)
-
Step 700
700
#66614E
oklch(49.2% 0.03 95)
-
Step 800
800
#534F40
oklch(42.7% 0.024 94.8)
-
Step 900
900 (this color)
#3A372C
oklch(33.6% 0.019 94.5)
-
Step 950
950
#282620
oklch(26.9% 0.011 91.7)
#3A372C 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) | #39362B | 0.004 |
| Deuteranopia (no green cones) | #3A372C | 0.000 |
| Tritanopia (no blue cones) | #3C3534 | 0.018 |
| Achromatopsia (no color) | #373737 | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A372C
#3A372C
oklch(33.6% 0.019 94.5)
- #343641
#343641
oklch(33.5% 0.02 277.2)
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 #3A372C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.033
- Charcoal Grey #3C4142 ΔE 0.042
- Pakistan Green #283618 ΔE 0.046
- Gunmetal #293241 ΔE 0.053
- Dark Olive #373E02 ΔE 0.061
- Dark Blue Grey #1F3B4D ΔE 0.063
- Space Cadet #2B2D42 ΔE 0.065
- Charcoal #264653 ΔE 0.070
Use #3A372C 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.