#503133
Closest named color: Onyx (#343A40). oklch(35.1% 0.045 15.4), rgb(80, 49, 51).
Aa
White text reads best on this color (11.48:1).
About this color
#503133 is a dark, muted red. In OKLCH its lightness is 35%, its chroma 0.045 and its hue 15°. Its hue sits on the warm side of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.055 away. White text reads best on it, at 11.48:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | muted (0.045) |
| Temperature | warm |
| Nearest name | Onyx (#343A40) |
| Black text | 1.82:1 |
| White text | 11.48:1 |
Values
| HEX | #503133 |
| RGB | rgb(80, 49, 51) |
| HSL | hsl(356, 24%, 25%) |
| OKLCH | oklch(35.1% 0.045 15.4) |
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 #503133 | 11.48:1 | AAA | Lc -100.1 | Preferred for body text |
| Black text on #503133 | 1.82:1 | Fails | Lc 7.5 | Not readable |
| #503133 text on white | 11.48:1 | AAA | Lc 96.3 | Preferred for body text |
| #503133 text on black | 1.82:1 | Fails | Lc 0.0 | 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
#F8F4F4
oklch(97% 0.004 17.2)
-
Step 100
100
#F0E7E8
oklch(93.5% 0.01 9.5)
-
Step 200
200
#E5D4D5
oklch(88.4% 0.019 13.4)
-
Step 300
300
#D6B8B9
oklch(80.9% 0.035 15.6)
-
Step 400
400
#C09395
oklch(70.6% 0.054 15.6)
-
Step 500
500
#B0787B
oklch(63.1% 0.071 15.7)
-
Step 600
600
#9B6165
oklch(55.7% 0.076 15.3)
-
Step 700
700
#845053
oklch(49.2% 0.07 16.2)
-
Step 800
800
#6B4244
oklch(42.8% 0.057 16.6)
-
Step 900
900 (this color)
#503133
oklch(35.1% 0.045 15.4)
-
Step 950
950
#332122
oklch(27.1% 0.028 15.4)
#503133 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) | #373633 | 0.048 |
| Deuteranopia (no green cones) | #3E3C32 | 0.046 |
| Tritanopia (no blue cones) | #562E32 | 0.014 |
| Achromatopsia (no color) | #393939 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503133
#503133
oklch(35.1% 0.045 15.4)
- #1A4242
#1A4242
oklch(35.1% 0.045 195.3)
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 #503133, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.055
- Charcoal Grey #3C4142 ΔE 0.056
- Purple Brown #673A3F ΔE 0.057
- Gunmetal #293241 ΔE 0.073
- Space Cadet #2B2D42 ΔE 0.078
- Chestnut #742802 ΔE 0.085
- Reddy Brown #6E1005 ΔE 0.086
- Dark Blue Grey #1F3B4D ΔE 0.086
Use #503133 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.