#503B18
Closest named color: Mud Brown (#60460F). oklch(36.8% 0.058 77.9), rgb(80, 59, 24).
Aa
White text reads best on this color (10.60:1).
About this color
#503B18 is a dark, muted brown. In OKLCH its lightness is 37%, its chroma 0.058 and its hue 78°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.048 away. White text reads best on it, at 10.60:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | muted (0.058) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 1.97:1 |
| White text | 10.60:1 |
Values
| HEX | #503B18 |
| RGB | rgb(80, 59, 24) |
| HSL | hsl(38, 54%, 20%) |
| OKLCH | oklch(36.8% 0.058 77.9) |
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 #503B18 | 10.60:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #503B18 | 1.97:1 | Fails | Lc 9.4 | Not readable |
| #503B18 text on white | 10.60:1 | AAA | Lc 94.5 | Preferred for body text |
| #503B18 text on black | 1.97:1 | 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
#E2D8C8
oklch(88.6% 0.024 79.7)
-
Step 300
300
#D0BEA2
oklch(80.9% 0.043 78.9)
-
Step 400
400
#B99C6F
oklch(70.8% 0.07 78.2)
-
Step 500
500
#A78347
oklch(63.2% 0.09 78.8)
-
Step 600
600
#926B27
oklch(55.5% 0.097 77.9)
-
Step 700
700
#7D591A
oklch(49.1% 0.09 77.1)
-
Step 800
800
#654918
oklch(42.6% 0.075 78)
-
Step 900
900 (this color)
#503B18
oklch(36.8% 0.058 77.9)
-
Step 950
950
#302411
oklch(26.9% 0.036 77.8)
#503B18 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) | #433C14 | 0.026 |
| Deuteranopia (no green cones) | #484119 | 0.022 |
| Tritanopia (no blue cones) | #573533 | 0.050 |
| Achromatopsia (no color) | #3F3F3F | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503B18
#503B18
oklch(36.8% 0.058 77.9)
- #2B405E
#2B405E
oklch(36.8% 0.059 257.3)
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 #503B18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.048
- Dark Olive #373E02 ΔE 0.054
- Charcoal Grey #3C4142 ΔE 0.063
- Green Brown #544E03 ΔE 0.065
- Pakistan Green #283618 ΔE 0.074
- Onyx #343A40 ΔE 0.075
- Purple Brown #673A3F ΔE 0.076
- Chestnut #742802 ΔE 0.079
Use #503B18 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.