#503D33
Closest named color: Charcoal Grey (#3C4142). oklch(37.8% 0.032 49.1), rgb(80, 61, 51).
Aa
White text reads best on this color (10.21:1).
About this color
#503D33 is a dark, muted brown. In OKLCH its lightness is 38%, its chroma 0.032 and its hue 49°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.039 away. White text reads best on it, at 10.21:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | muted (0.032) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.05:1 |
| White text | 10.21:1 |
Values
| HEX | #503D33 |
| RGB | rgb(80, 61, 51) |
| HSL | hsl(21, 22%, 26%) |
| OKLCH | oklch(37.8% 0.032 49.1) |
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 #503D33 | 10.21:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #503D33 | 2.05:1 | Fails | Lc 10.2 | Not readable |
| #503D33 text on white | 10.21:1 | AAA | Lc 93.7 | Preferred for body text |
| #503D33 text on black | 2.05:1 | Fails | Lc -8.8 | 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
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#EEE9E6
oklch(93.7% 0.007 53.4)
-
Step 200
200
#E1D7D2
oklch(88.6% 0.013 48.6)
-
Step 300
300
#CEBDB3
oklch(81% 0.024 52.6)
-
Step 400
400
#B59A8C
oklch(70.7% 0.038 49.1)
-
Step 500
500
#A28170
oklch(63% 0.048 48.7)
-
Step 600
600
#8D6A58
oklch(55.5% 0.053 48.4)
-
Step 700
700
#785948
oklch(49.2% 0.049 49.9)
-
Step 800
800
#62493B
oklch(42.8% 0.041 50.5)
-
Step 900
900 (this color)
#503D33
oklch(37.8% 0.032 49.1)
-
Step 950
950
#2F241E
oklch(27.1% 0.02 50.1)
#503D33 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) | #423F32 | 0.026 |
| Deuteranopia (no green cones) | #464333 | 0.025 |
| Tritanopia (no blue cones) | #553A3A | 0.019 |
| Achromatopsia (no color) | #414141 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503D33
#503D33
oklch(37.8% 0.032 49.1)
- #30454F
#30454F
oklch(37.7% 0.031 229)
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 #503D33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.039
- Purple Brown #673A3F ΔE 0.051
- Onyx #343A40 ΔE 0.055
- Mud Brown #60460F ΔE 0.063
- Dark Slate Gray #2F4F4F ΔE 0.071
- Charcoal #264653 ΔE 0.075
- Dark Olive #373E02 ΔE 0.079
- Dark Grey Blue #29465B ΔE 0.081
Use #503D33 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.