#403E27
Closest named color: Charcoal Grey (#3C4142). oklch(35.9% 0.037 103.9), rgb(64, 62, 39).
Aa
White text reads best on this color (10.84:1).
About this color
#403E27 is a dark, muted brown. In OKLCH its lightness is 36%, its chroma 0.037 and its hue 104°. 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 10.84:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | muted (0.037) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.93:1 |
| White text | 10.84:1 |
Values
| HEX | #403E27 |
| RGB | rgb(64, 62, 39) |
| HSL | hsl(55, 24%, 20%) |
| OKLCH | oklch(35.9% 0.037 103.9) |
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 #403E27 | 10.84:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #403E27 | 1.93:1 | Fails | Lc 8.8 | Not readable |
| #403E27 text on white | 10.84:1 | AAA | Lc 95.1 | Preferred for body text |
| #403E27 text on black | 1.93:1 | Fails | Lc -7.5 | 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
#F6F6F3
oklch(97.2% 0.004 106.5)
-
Step 100
100
#EAEAE4
oklch(93.5% 0.008 106.6)
-
Step 200
200
#DADACE
oklch(88.5% 0.016 106.7)
-
Step 300
300
#C3C2AE
oklch(80.9% 0.027 104.7)
-
Step 400
400
#A5A283
oklch(70.6% 0.043 102.9)
-
Step 500
500
#8F8C63
oklch(63.2% 0.058 104.4)
-
Step 600
600
#79754A
oklch(55.5% 0.061 103.6)
-
Step 700
700
#66623B
oklch(49% 0.057 103.2)
-
Step 800
800
#535031
oklch(42.6% 0.047 103.5)
-
Step 900
900 (this color)
#403E27
oklch(35.9% 0.037 103.9)
-
Step 950
950
#28271A
oklch(27% 0.023 104.1)
#403E27 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) | #423C25 | 0.007 |
| Deuteranopia (no green cones) | #433E28 | 0.006 |
| Tritanopia (no blue cones) | #443B38 | 0.033 |
| Achromatopsia (no color) | #3D3D3D | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403E27
#403E27
oklch(35.9% 0.037 103.9)
- #3A3A50
#3A3A50
oklch(35.8% 0.038 284.3)
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 #403E27, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.041
- Dark Olive #373E02 ΔE 0.045
- Onyx #343A40 ΔE 0.050
- Pakistan Green #283618 ΔE 0.054
- Evergreen #05472A ΔE 0.066
- Dark Slate Gray #2F4F4F ΔE 0.069
- Mud Brown #60460F ΔE 0.070
- Pine Green #0A481E ΔE 0.072
Use #403E27 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.