#503B15
Closest named color: Mud Brown (#60460F). oklch(36.7% 0.061 79.6), rgb(80, 59, 21).
Aa
White text reads best on this color (10.61:1).
About this color
#503B15 is a dark, muted brown. In OKLCH its lightness is 37%, its chroma 0.061 and its hue 80°. 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 10.61:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | muted (0.061) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 1.97:1 |
| White text | 10.61:1 |
Values
| HEX | #503B15 |
| RGB | rgb(80, 59, 21) |
| HSL | hsl(39, 58%, 20%) |
| OKLCH | oklch(36.7% 0.061 79.6) |
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 #503B15 | 10.61:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #503B15 | 1.97:1 | Fails | Lc 9.4 | Not readable |
| #503B15 text on white | 10.61:1 | AAA | Lc 94.5 | Preferred for body text |
| #503B15 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
#EFE9E0
oklch(93.6% 0.014 78.3)
-
Step 200
200
#E2D8C7
oklch(88.6% 0.025 81.1)
-
Step 300
300
#D1BEA0
oklch(81% 0.046 79.2)
-
Step 400
400
#B99C6C
oklch(70.7% 0.073 79.7)
-
Step 500
500
#A78343
oklch(63.1% 0.093 80.1)
-
Step 600
600
#936C21
oklch(55.7% 0.102 79.6)
-
Step 700
700
#7D5A12
oklch(49.2% 0.095 79.9)
-
Step 800
800
#654913
oklch(42.6% 0.078 79.6)
-
Step 900
900 (this color)
#503B15
oklch(36.7% 0.061 79.6)
-
Step 950
950
#30240F
oklch(26.9% 0.038 80)
#503B15 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) | #433B11 | 0.026 |
| Deuteranopia (no green cones) | #484116 | 0.022 |
| Tritanopia (no blue cones) | #573533 | 0.053 |
| Achromatopsia (no color) | #3E3E3E | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503B15
#503B15
oklch(36.7% 0.061 79.6)
- #2B3F5F
#2B3F5F
oklch(36.6% 0.061 259.5)
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 #503B15, 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 0.052
- Green Brown #544E03 ΔE 0.064
- Charcoal Grey #3C4142 ΔE 0.066
- Pakistan Green #283618 ΔE 0.074
- Onyx #343A40 ΔE 0.077
- Purple Brown #673A3F ΔE 0.078
- Chestnut #742802 ΔE 0.079
Use #503B15 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.