#503D21
Closest named color: Mud Brown (#60460F). oklch(37.4% 0.05 75.9), rgb(80, 61, 33).
Aa
White text reads best on this color (10.34:1).
About this color
#503D21 is a dark, muted brown. In OKLCH its lightness is 37%, its chroma 0.050 and its hue 76°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.047 away. White text reads best on it, at 10.34:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | muted (0.050) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.03:1 |
| White text | 10.34:1 |
Values
| HEX | #503D21 |
| RGB | rgb(80, 61, 33) |
| HSL | hsl(36, 42%, 22%) |
| OKLCH | oklch(37.4% 0.05 75.9) |
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 #503D21 | 10.34:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #503D21 | 2.03:1 | Fails | Lc 10.0 | Not readable |
| #503D21 text on white | 10.34:1 | AAA | Lc 93.9 | Preferred for body text |
| #503D21 text on black | 2.03:1 | Fails | Lc -8.6 | 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
#B69C77
oklch(70.7% 0.059 76.3)
-
Step 500
500
#A48353
oklch(63% 0.076 76)
-
Step 600
600
#8F6C37
oklch(55.5% 0.083 75.9)
-
Step 700
700
#7A5A29
oklch(49.1% 0.078 75.7)
-
Step 800
800
#634A24
oklch(42.7% 0.064 76.1)
-
Step 900
900 (this color)
#503D21
oklch(37.4% 0.05 75.9)
-
Step 950
950
#2F2414
oklch(26.9% 0.032 76.1)
#503D21 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) | #443D1F | 0.023 |
| Deuteranopia (no green cones) | #494222 | 0.019 |
| Tritanopia (no blue cones) | #573836 | 0.042 |
| Achromatopsia (no color) | #404040 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503D21
#503D21
oklch(37.4% 0.05 75.9)
- #2F425B
#2F425B
oklch(37.4% 0.05 255.5)
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 #503D21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.055
- Dark Olive #373E02 ΔE 0.059
- Green Brown #544E03 ΔE 0.065
- Purple Brown #673A3F ΔE 0.068
- Onyx #343A40 ΔE 0.069
- Pakistan Green #283618 ΔE 0.077
- Chestnut #742802 ΔE 0.080
Use #503D21 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.