#4B371F
Closest named color: Charcoal Grey (#3C4142). oklch(35.3% 0.047 70.4), rgb(75, 55, 31).
Aa
White text reads best on this color (11.25:1).
About this color
#4B371F is a dark, muted brown. In OKLCH its lightness is 35%, its chroma 0.047 and its hue 70°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.055 away. White text reads best on it, at 11.25:1.
| Hue family | Browns |
| Lightness | dark (35%) |
| Chroma | muted (0.047) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.86:1 |
| White text | 11.25:1 |
Values
| HEX | #4B371F |
| RGB | rgb(75, 55, 31) |
| HSL | hsl(33, 42%, 21%) |
| OKLCH | oklch(35.3% 0.047 70.4) |
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 #4B371F | 11.25:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #4B371F | 1.86:1 | Fails | Lc 8.0 | Not readable |
| #4B371F text on white | 11.25:1 | AAA | Lc 95.9 | Preferred for body text |
| #4B371F text on black | 1.86:1 | 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
#F7F5F2
oklch(97.1% 0.005 78.3)
-
Step 100
100
#EEE9E3
oklch(93.6% 0.01 72.7)
-
Step 200
200
#E2D7CC
oklch(88.5% 0.019 67.6)
-
Step 300
300
#D0BDA9
oklch(80.9% 0.035 68.7)
-
Step 400
400
#B89B7B
oklch(70.7% 0.056 69.5)
-
Step 500
500
#A68259
oklch(63.1% 0.072 69.6)
-
Step 600
600
#916B3E
oklch(55.6% 0.078 69.7)
-
Step 700
700
#7B5930
oklch(49.1% 0.072 69.9)
-
Step 800
800
#644928
oklch(42.7% 0.06 70.5)
-
Step 900
900 (this color)
#4B371F
oklch(35.3% 0.047 70.4)
-
Step 950
950
#302416
oklch(27% 0.03 70.3)
#4B371F 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) | #3E381D | 0.025 |
| Deuteranopia (no green cones) | #433D20 | 0.023 |
| Tritanopia (no blue cones) | #513231 | 0.038 |
| Achromatopsia (no color) | #3B3B3B | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B371F
#4B371F
oklch(35.3% 0.047 70.4)
- #283D53
#283D53
oklch(35.3% 0.047 250.4)
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 #4B371F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.055
- Dark Olive #373E02 ΔE 0.057
- Onyx #343A40 ΔE 0.061
- Pakistan Green #283618 ΔE 0.064
- Mud Brown #60460F ΔE 0.067
- Purple Brown #673A3F ΔE 0.076
- Green Brown #544E03 ΔE 0.084
- Chestnut #742802 ΔE 0.085
Use #4B371F 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.