#403C28
Closest named color: Charcoal Grey (#3C4142). oklch(35.4% 0.033 98.2), rgb(64, 60, 40).
Aa
White text reads best on this color (11.08:1).
About this color
#403C28 is a dark, muted brown. In OKLCH its lightness is 35%, its chroma 0.033 and its hue 98°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.040 away. White text reads best on it, at 11.08:1.
| Hue family | Browns |
| Lightness | dark (35%) |
| Chroma | muted (0.033) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.89:1 |
| White text | 11.08:1 |
Values
| HEX | #403C28 |
| RGB | rgb(64, 60, 40) |
| HSL | hsl(50, 23%, 20%) |
| OKLCH | oklch(35.4% 0.033 98.2) |
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 #403C28 | 11.08:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #403C28 | 1.89:1 | Fails | Lc 8.3 | Not readable |
| #403C28 text on white | 11.08:1 | AAA | Lc 95.6 | Preferred for body text |
| #403C28 text on black | 1.89:1 | 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
#DBD9CF
oklch(88.4% 0.014 97.5)
-
Step 300
300
#C4C1AF
oklch(80.8% 0.025 99.2)
-
Step 400
400
#A7A186
oklch(70.7% 0.038 96.9)
-
Step 500
500
#918A67
oklch(63% 0.05 98.1)
-
Step 600
600
#7C744E
oklch(55.6% 0.055 97.7)
-
Step 700
700
#68613F
oklch(49% 0.051 98)
-
Step 800
800
#554F34
oklch(42.6% 0.042 97.1)
-
Step 900
900 (this color)
#403C28
oklch(35.4% 0.033 98.2)
-
Step 950
950
#29271B
oklch(27.1% 0.021 99.7)
#403C28 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) | #403B27 | 0.003 |
| Deuteranopia (no green cones) | #413C29 | 0.003 |
| Tritanopia (no blue cones) | #443937 | 0.031 |
| Achromatopsia (no color) | #3C3C3C | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403C28
#403C28
oklch(35.4% 0.033 98.2)
- #373A4D
#373A4D
oklch(35.4% 0.033 277.6)
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 #403C28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.040
- Onyx #343A40 ΔE 0.046
- Dark Olive #373E02 ΔE 0.049
- Pakistan Green #283618 ΔE 0.052
- Evergreen #05472A ΔE 0.069
- Dark Slate Gray #2F4F4F ΔE 0.072
- Charcoal #264653 ΔE 0.072
- Gunmetal #293241 ΔE 0.073
Use #403C28 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.