#503630
Closest named color: Charcoal Grey (#3C4142). oklch(36.1% 0.039 33.5), rgb(80, 54, 48).
Aa
White text reads best on this color (10.98:1).
About this color
#503630 is a dark, muted red. In OKLCH its lightness is 36%, its chroma 0.039 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.047 away. White text reads best on it, at 10.98:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | muted (0.039) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.91:1 |
| White text | 10.98:1 |
Values
| HEX | #503630 |
| RGB | rgb(80, 54, 48) |
| HSL | hsl(11, 25%, 25%) |
| OKLCH | oklch(36.1% 0.039 33.5) |
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 #503630 | 10.98:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #503630 | 1.91:1 | Fails | Lc 8.5 | Not readable |
| #503630 text on white | 10.98:1 | AAA | Lc 95.4 | Preferred for body text |
| #503630 text on black | 1.91:1 | Fails | Lc -7.3 | 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
#EFE8E6
oklch(93.6% 0.008 36.6)
-
Step 200
200
#E4D6D2
oklch(88.6% 0.016 36.5)
-
Step 300
300
#D3BAB4
oklch(80.9% 0.03 33.7)
-
Step 400
400
#BC978E
oklch(70.8% 0.047 34)
-
Step 500
500
#AB7D72
oklch(63.2% 0.06 33.9)
-
Step 600
600
#96655A
oklch(55.6% 0.066 33.2)
-
Step 700
700
#7F544A
oklch(49% 0.06 33.7)
-
Step 800
800
#68453D
oklch(42.8% 0.051 33.4)
-
Step 900
900 (this color)
#503630
oklch(36.1% 0.039 33.5)
-
Step 950
950
#31221F
oklch(26.9% 0.024 31.5)
#503630 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) | #3C3930 | 0.038 |
| Deuteranopia (no green cones) | #423E30 | 0.034 |
| Tritanopia (no blue cones) | #563234 | 0.019 |
| Achromatopsia (no color) | #3C3C3C | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503630
#503630
oklch(36.1% 0.039 33.5)
- #23434A
#23434A
oklch(36.1% 0.04 213.4)
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 #503630, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.047
- Onyx #343A40 ΔE 0.053
- Purple Brown #673A3F ΔE 0.053
- Mud Brown #60460F ΔE 0.078
- Gunmetal #293241 ΔE 0.078
- Chestnut #742802 ΔE 0.081
- Charcoal #264653 ΔE 0.084
- Dark Olive #373E02 ΔE 0.084
Use #503630 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.