#503D57
Closest named color: Charcoal Grey (#3C4142). oklch(39.1% 0.049 316.8), rgb(80, 61, 87).
Aa
White text reads best on this color (9.78:1).
About this color
#503D57 is a dark, muted purple. In OKLCH its lightness is 39%, its chroma 0.049 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.055 away. White text reads best on it, at 9.78:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | muted (0.049) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.14:1 |
| White text | 9.78:1 |
Values
| HEX | #503D57 |
| RGB | rgb(80, 61, 87) |
| HSL | hsl(284, 18%, 29%) |
| OKLCH | oklch(39.1% 0.049 316.8) |
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 #503D57 | 9.78:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #503D57 | 2.14:1 | Fails | Lc 11.3 | Not readable |
| #503D57 text on white | 9.78:1 | AAA | Lc 92.7 | Preferred for body text |
| #503D57 text on black | 2.14:1 | Fails | Lc -9.8 | 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
#F7F4F8
oklch(97.1% 0.006 317.8)
-
Step 100
100
#EDE8EF
oklch(93.7% 0.011 316.5)
-
Step 200
200
#DFD5E2
oklch(88.5% 0.021 318.4)
-
Step 300
300
#CABAD1
oklch(80.9% 0.036 315.7)
-
Step 400
400
#B096BA
oklch(70.8% 0.059 316.6)
-
Step 500
500
#9C7BA8
oklch(63% 0.076 316.9)
-
Step 600
600
#876493
oklch(55.6% 0.082 317.3)
-
Step 700
700
#72537E
oklch(49.1% 0.076 316.3)
-
Step 800
800
#5D4466
oklch(42.7% 0.063 316.9)
-
Step 900
900 (this color)
#503D57
oklch(39.1% 0.049 316.8)
-
Step 950
950
#2D2231
oklch(27.1% 0.031 316.9)
#503D57 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) | #3A4358 | 0.039 |
| Deuteranopia (no green cones) | #3E4456 | 0.036 |
| Tritanopia (no blue cones) | #504046 | 0.033 |
| Achromatopsia (no color) | #444444 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503D57
#503D57
oklch(39.1% 0.049 316.8)
- #394C31
#394C31
oklch(39.2% 0.05 136.7)
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 #503D57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.055
- Purple Brown #673A3F ΔE 0.057
- Dark Grey Blue #29465B ΔE 0.062
- Onyx #343A40 ΔE 0.065
- Charcoal #264653 ΔE 0.068
- Dark Slate Gray #2F4F4F ΔE 0.077
- Brownish Purple #76424E ΔE 0.078
- Dark Blue Grey #1F3B4D ΔE 0.080
Use #503D57 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.