#503B33
Closest named color: Charcoal Grey (#3C4142). oklch(37.3% 0.033 41.8), rgb(80, 59, 51).
Aa
White text reads best on this color (10.42:1).
About this color
#503B33 is a dark, muted brown. In OKLCH its lightness is 37%, its chroma 0.033 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.040 away. White text reads best on it, at 10.42:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | muted (0.033) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.01:1 |
| White text | 10.42:1 |
Values
| HEX | #503B33 |
| RGB | rgb(80, 59, 51) |
| HSL | hsl(17, 22%, 26%) |
| OKLCH | oklch(37.3% 0.033 41.8) |
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 #503B33 | 10.42:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #503B33 | 2.01:1 | Fails | Lc 9.8 | Not readable |
| #503B33 text on white | 10.42:1 | AAA | Lc 94.2 | Preferred for body text |
| #503B33 text on black | 2.01:1 | Fails | Lc -8.4 | 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
#EEE8E6
oklch(93.5% 0.007 39.5)
-
Step 200
200
#E2D6D2
oklch(88.5% 0.014 39.4)
-
Step 300
300
#CFBCB4
oklch(80.9% 0.024 44.3)
-
Step 400
400
#B7998E
oklch(70.7% 0.039 41.2)
-
Step 500
500
#A58072
oklch(63.2% 0.051 41.7)
-
Step 600
600
#90695A
oklch(55.7% 0.055 42)
-
Step 700
700
#7A574A
oklch(49% 0.051 41.2)
-
Step 800
800
#63473D
oklch(42.6% 0.042 40.5)
-
Step 900
900 (this color)
#503B33
oklch(37.3% 0.033 41.8)
-
Step 950
950
#30231F
oklch(27% 0.021 37.8)
#503B33 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) | #403D32 | 0.030 |
| Deuteranopia (no green cones) | #454133 | 0.026 |
| Tritanopia (no blue cones) | #553839 | 0.018 |
| Achromatopsia (no color) | #404040 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503B33
#503B33
oklch(37.3% 0.033 41.8)
- #2D454D
#2D454D
oklch(37.4% 0.033 220.8)
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 #503B33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.040
- Purple Brown #673A3F ΔE 0.050
- Onyx #343A40 ΔE 0.053
- Mud Brown #60460F ΔE 0.068
- Dark Slate Gray #2F4F4F ΔE 0.075
- Charcoal #264653 ΔE 0.077
- Dark Olive #373E02 ΔE 0.081
- Dark Grey Blue #29465B ΔE 0.082
Use #503B33 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.