#503B25
Closest named color: Charcoal Grey (#3C4142). oklch(37% 0.045 67), rgb(80, 59, 37).
Aa
White text reads best on this color (10.53:1).
About this color
#503B25 is a dark, muted brown. In OKLCH its lightness is 37%, its chroma 0.045 and its hue 67°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.051 away. White text reads best on it, at 10.53:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | muted (0.045) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.99:1 |
| White text | 10.53:1 |
Values
| HEX | #503B25 |
| RGB | rgb(80, 59, 37) |
| HSL | hsl(31, 37%, 23%) |
| OKLCH | oklch(37% 0.045 67) |
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 #503B25 | 10.53:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #503B25 | 1.99:1 | Fails | Lc 9.5 | Not readable |
| #503B25 text on white | 10.53:1 | AAA | Lc 94.4 | Preferred for body text |
| #503B25 text on black | 1.99:1 | Fails | Lc -8.2 | 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
#F8F5F2
oklch(97.2% 0.005 67.8)
-
Step 100
100
#EEE9E3
oklch(93.6% 0.01 72.7)
-
Step 200
200
#E2D7CC
oklch(88.5% 0.019 67.6)
-
Step 300
300
#D0BDAA
oklch(80.9% 0.034 67.3)
-
Step 400
400
#B89B7D
oklch(70.8% 0.054 67.7)
-
Step 500
500
#A6815B
oklch(63% 0.07 66.7)
-
Step 600
600
#916A41
oklch(55.5% 0.076 66.6)
-
Step 700
700
#7C5933
oklch(49.2% 0.071 67.2)
-
Step 800
800
#65492B
oklch(42.9% 0.058 67.1)
-
Step 900
900 (this color)
#503B25
oklch(37% 0.045 67)
-
Step 950
950
#302417
oklch(27.1% 0.029 68.4)
#503B25 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) | #423C23 | 0.027 |
| Deuteranopia (no green cones) | #474125 | 0.024 |
| Tritanopia (no blue cones) | #563635 | 0.035 |
| Achromatopsia (no color) | #3F3F3F | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503B25
#503B25
oklch(37% 0.045 67)
- #2C4257
#2C4257
oklch(37% 0.046 248)
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 #503B25, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.051
- Mud Brown #60460F ΔE 0.055
- Purple Brown #673A3F ΔE 0.063
- Onyx #343A40 ΔE 0.064
- Dark Olive #373E02 ΔE 0.064
- Green Brown #544E03 ΔE 0.074
- Pakistan Green #283618 ΔE 0.078
- Chestnut #742802 ΔE 0.079
Use #503B25 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.