#503138
Closest named color: Onyx (#343A40). oklch(35.3% 0.046 5), rgb(80, 49, 56).
Aa
White text reads best on this color (11.42:1).
About this color
#503138 is a dark, muted red. In OKLCH its lightness is 35%, its chroma 0.046 and its hue 5°. Its hue sits on the warm side of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.054 away. White text reads best on it, at 11.42:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | muted (0.046) |
| Temperature | warm |
| Nearest name | Onyx (#343A40) |
| Black text | 1.83:1 |
| White text | 11.42:1 |
Values
| HEX | #503138 |
| RGB | rgb(80, 49, 56) |
| HSL | hsl(346, 24%, 25%) |
| OKLCH | oklch(35.3% 0.046 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 #503138 | 11.42:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #503138 | 1.83:1 | Fails | Lc 7.7 | Not readable |
| #503138 text on white | 11.42:1 | AAA | Lc 96.2 | Preferred for body text |
| #503138 text on black | 1.83:1 | 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
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#F0E7E9
oklch(93.6% 0.01 2)
-
Step 200
200
#E5D4D7
oklch(88.5% 0.019 5.3)
-
Step 300
300
#D5B8BD
oklch(80.9% 0.034 6.1)
-
Step 400
400
#C0939C
oklch(70.8% 0.055 5.2)
-
Step 500
500
#AF7884
oklch(63.2% 0.071 5)
-
Step 600
600
#9A606D
oklch(55.7% 0.077 5.3)
-
Step 700
700
#834F5B
oklch(49.1% 0.071 5.1)
-
Step 800
800
#6B414B
oklch(42.8% 0.06 4.5)
-
Step 900
900 (this color)
#503138
oklch(35.3% 0.046 5)
-
Step 950
950
#332024
oklch(26.9% 0.03 5.5)
#503138 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) | #363638 | 0.050 |
| Deuteranopia (no green cones) | #3D3C37 | 0.047 |
| Tritanopia (no blue cones) | #552F33 | 0.012 |
| Achromatopsia (no color) | #3A3A3A | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503138
#503138
oklch(35.3% 0.046 5)
- #1B433E
#1B433E
oklch(35.2% 0.046 184.5)
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 #503138, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.054
- Charcoal Grey #3C4142 ΔE 0.055
- Purple Brown #673A3F ΔE 0.056
- Gunmetal #293241 ΔE 0.072
- Space Cadet #2B2D42 ΔE 0.075
- Dark Blue Grey #1F3B4D ΔE 0.084
- Charcoal #264653 ΔE 0.087
- Burgundy #610023 ΔE 0.089
Use #503138 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.