#503D18
Closest named color: Mud Brown (#60460F). oklch(37.2% 0.059 81.8), rgb(80, 61, 24).
Aa
White text reads best on this color (10.38:1).
About this color
#503D18 is a dark, muted brown. In OKLCH its lightness is 37%, its chroma 0.059 and its hue 82°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.044 away. White text reads best on it, at 10.38:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | muted (0.059) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.02:1 |
| White text | 10.38:1 |
Values
| HEX | #503D18 |
| RGB | rgb(80, 61, 24) |
| HSL | hsl(40, 54%, 20%) |
| OKLCH | oklch(37.2% 0.059 81.8) |
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 #503D18 | 10.38:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #503D18 | 2.02:1 | Fails | Lc 9.9 | Not readable |
| #503D18 text on white | 10.38:1 | AAA | Lc 94.0 | Preferred for body text |
| #503D18 text on black | 2.02:1 | Fails | Lc -8.5 | 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
#F7F5F1
oklch(97.1% 0.006 84.6)
-
Step 100
100
#EEE9E0
oklch(93.5% 0.013 82.4)
-
Step 200
200
#E1D8C7
oklch(88.5% 0.025 83.4)
-
Step 300
300
#CFBEA1
oklch(80.8% 0.044 81.1)
-
Step 400
400
#B79D6D
oklch(70.8% 0.071 82.4)
-
Step 500
500
#A58445
oklch(63.1% 0.091 82)
-
Step 600
600
#906D24
oklch(55.6% 0.099 82.1)
-
Step 700
700
#7B5B16
oklch(49.2% 0.092 81.9)
-
Step 800
800
#644A16
oklch(42.7% 0.076 81.1)
-
Step 900
900 (this color)
#503D18
oklch(37.2% 0.059 81.8)
-
Step 950
950
#302510
oklch(27.2% 0.038 82.2)
#503D18 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) | #453D14 | 0.022 |
| Deuteranopia (no green cones) | #494219 | 0.019 |
| Tritanopia (no blue cones) | #573735 | 0.053 |
| Achromatopsia (no color) | #404040 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503D18
#503D18
oklch(37.2% 0.059 81.8)
- #2F4060
#2F4060
oklch(37.2% 0.06 262.4)
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 #503D18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.044
- Dark Olive #373E02 ΔE 0.052
- Green Brown #544E03 ΔE 0.059
- Charcoal Grey #3C4142 ΔE 0.064
- Pakistan Green #283618 ΔE 0.076
- Purple Brown #673A3F ΔE 0.077
- Onyx #343A40 ΔE 0.077
- Chestnut #742802 ΔE 0.081
Use #503D18 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.