#403B27
Closest named color: Charcoal Grey (#3C4142). oklch(35.2% 0.033 95.8), rgb(64, 59, 39).
Aa
White text reads best on this color (11.21:1).
About this color
#403B27 is a dark, muted brown. In OKLCH its lightness is 35%, its chroma 0.033 and its hue 96°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.041 away. White text reads best on it, at 11.21:1.
| Hue family | Browns |
| Lightness | dark (35%) |
| Chroma | muted (0.033) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.87:1 |
| White text | 11.21:1 |
Values
| HEX | #403B27 |
| RGB | rgb(64, 59, 39) |
| HSL | hsl(48, 24%, 20%) |
| OKLCH | oklch(35.2% 0.033 95.8) |
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 #403B27 | 11.21:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #403B27 | 1.87:1 | Fails | Lc 8.0 | Not readable |
| #403B27 text on white | 11.21:1 | AAA | Lc 95.9 | Preferred for body text |
| #403B27 text on black | 1.87:1 | 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
#F6F5F3
oklch(97% 0.003 84.6)
-
Step 100
100
#EBEAE5
oklch(93.6% 0.007 97.4)
-
Step 200
200
#DCD9CF
oklch(88.5% 0.014 93)
-
Step 300
300
#C5C1AF
oklch(80.9% 0.025 96.6)
-
Step 400
400
#A8A185
oklch(70.7% 0.04 95.6)
-
Step 500
500
#928A67
oklch(63.1% 0.05 96.8)
-
Step 600
600
#7D734E
oklch(55.5% 0.054 94.8)
-
Step 700
700
#69613F
oklch(49.1% 0.051 96.5)
-
Step 800
800
#564F34
oklch(42.7% 0.042 95.3)
-
Step 900
900 (this color)
#403B27
oklch(35.2% 0.033 95.8)
-
Step 950
950
#29261B
oklch(26.8% 0.02 94.6)
#403B27 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) | #3F3A26 | 0.004 |
| Deuteranopia (no green cones) | #403C28 | 0.003 |
| Tritanopia (no blue cones) | #443836 | 0.031 |
| Achromatopsia (no color) | #3B3B3B | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403B27
#403B27
oklch(35.2% 0.033 95.8)
- #363A4C
#363A4C
oklch(35.2% 0.032 274.9)
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 #403B27, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.041
- Onyx #343A40 ΔE 0.046
- Dark Olive #373E02 ΔE 0.049
- Pakistan Green #283618 ΔE 0.051
- Evergreen #05472A ΔE 0.070
- Gunmetal #293241 ΔE 0.072
- Charcoal #264653 ΔE 0.074
- Dark Slate Gray #2F4F4F ΔE 0.075
Use #403B27 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.