#503B1B
Closest named color: Mud Brown (#60460F). oklch(36.8% 0.055 76.1), rgb(80, 59, 27).
Aa
White text reads best on this color (10.59:1).
About this color
#503B1B is a dark, muted brown. In OKLCH its lightness is 37%, its chroma 0.055 and its hue 76°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.049 away. White text reads best on it, at 10.59:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | muted (0.055) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 1.98:1 |
| White text | 10.59:1 |
Values
| HEX | #503B1B |
| RGB | rgb(80, 59, 27) |
| HSL | hsl(36, 50%, 21%) |
| OKLCH | oklch(36.8% 0.055 76.1) |
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 #503B1B | 10.59:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #503B1B | 1.98:1 | Fails | Lc 9.4 | Not readable |
| #503B1B text on white | 10.59:1 | AAA | Lc 94.5 | Preferred for body text |
| #503B1B text on black | 1.98:1 | Fails | Lc -8.1 | 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
#F8F5F1
oklch(97.1% 0.006 75.4)
-
Step 100
100
#EFE9E1
oklch(93.7% 0.013 75.4)
-
Step 200
200
#E2D7C9
oklch(88.4% 0.022 74.1)
-
Step 300
300
#D0BEA3
oklch(80.9% 0.042 78)
-
Step 400
400
#B99B72
oklch(70.7% 0.066 75)
-
Step 500
500
#A7824C
oklch(63% 0.085 75.6)
-
Step 600
600
#926B2E
oklch(55.5% 0.092 75.8)
-
Step 700
700
#7C5920
oklch(49% 0.086 76.2)
-
Step 800
800
#65491D
oklch(42.7% 0.071 75.9)
-
Step 900
900 (this color)
#503B1B
oklch(36.8% 0.055 76.1)
-
Step 950
950
#302412
oklch(26.9% 0.035 76.5)
#503B1B 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) | #433C18 | 0.025 |
| Deuteranopia (no green cones) | #48411C | 0.022 |
| Tritanopia (no blue cones) | #573534 | 0.048 |
| Achromatopsia (no color) | #3F3F3F | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503B1B
#503B1B
oklch(36.8% 0.055 76.1)
- #2B405C
#2B405C
oklch(36.7% 0.056 255.9)
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 #503B1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.049
- Dark Olive #373E02 ΔE 0.056
- Charcoal Grey #3C4142 ΔE 0.061
- Green Brown #544E03 ΔE 0.067
- Onyx #343A40 ΔE 0.072
- Purple Brown #673A3F ΔE 0.073
- Pakistan Green #283618 ΔE 0.075
- Chestnut #742802 ΔE 0.079
Use #503B1B 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.