#4B381B
Closest named color: Dark Olive (#373E02). oklch(35.5% 0.051 76.4), rgb(75, 56, 27).
Aa
White text reads best on this color (11.16:1).
About this color
#4B381B is a dark, muted brown. In OKLCH its lightness is 35%, its chroma 0.051 and its hue 76°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.052 away. White text reads best on it, at 11.16:1.
| Hue family | Browns |
| Lightness | dark (35%) |
| Chroma | muted (0.051) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.88:1 |
| White text | 11.16:1 |
Values
| HEX | #4B381B |
| RGB | rgb(75, 56, 27) |
| HSL | hsl(36, 47%, 20%) |
| OKLCH | oklch(35.5% 0.051 76.4) |
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 #4B381B | 11.16:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #4B381B | 1.88:1 | Fails | Lc 8.2 | Not readable |
| #4B381B text on white | 11.16:1 | AAA | Lc 95.7 | Preferred for body text |
| #4B381B text on black | 1.88:1 | 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
#EEE9E2
oklch(93.6% 0.011 76.6)
-
Step 200
200
#E1D8CA
oklch(88.6% 0.021 79.1)
-
Step 300
300
#CFBEA6
oklch(80.9% 0.038 76.6)
-
Step 400
400
#B79C76
oklch(70.7% 0.061 76)
-
Step 500
500
#A58351
oklch(63.1% 0.079 76.2)
-
Step 600
600
#906C35
oklch(55.6% 0.086 76)
-
Step 700
700
#7A5A27
oklch(49% 0.08 76.6)
-
Step 800
800
#634A22
oklch(42.7% 0.066 77.2)
-
Step 900
900 (this color)
#4B381B
oklch(35.5% 0.051 76.4)
-
Step 950
950
#302414
oklch(27% 0.032 73.7)
#4B381B 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) | #3F3918 | 0.024 |
| Deuteranopia (no green cones) | #443D1C | 0.019 |
| Tritanopia (no blue cones) | #523331 | 0.043 |
| Achromatopsia (no color) | #3B3B3B | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B381B
#4B381B
oklch(35.5% 0.051 76.4)
- #2A3D56
#2A3D56
oklch(35.6% 0.05 255.6)
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 #4B381B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.059
- Mud Brown #60460F ΔE 0.063
- Pakistan Green #283618 ΔE 0.063
- Onyx #343A40 ΔE 0.065
- Green Brown #544E03 ΔE 0.078
- Purple Brown #673A3F ΔE 0.079
- Chestnut #742802 ΔE 0.085
Use #4B381B 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.