#503E67
Closest named color: Dark Slate Blue (#483D8B). oklch(40.1% 0.07 303.6), rgb(80, 62, 103).
Aa
White text reads best on this color (9.43:1).
About this color
#503E67 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.070 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.063 away. White text reads best on it, at 9.43:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.070) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.22:1 |
| White text | 9.43:1 |
Values
| HEX | #503E67 |
| RGB | rgb(80, 62, 103) |
| HSL | hsl(266, 25%, 32%) |
| OKLCH | oklch(40.1% 0.07 303.6) |
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 #503E67 | 9.43:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #503E67 | 2.22:1 | Fails | Lc 12.2 | Not readable |
| #503E67 text on white | 9.43:1 | AAA | Lc 91.7 | Preferred for body text |
| #503E67 text on black | 2.22:1 | Fails | Lc -10.6 | 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
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#ECE8F2
oklch(93.7% 0.014 304.1)
-
Step 200
200
#DDD5E9
oklch(88.5% 0.028 303.9)
-
Step 300
300
#C7B9DD
oklch(80.9% 0.052 302.9)
-
Step 400
400
#AC94CC
oklch(70.8% 0.084 303.9)
-
Step 500
500
#9778BF
oklch(63% 0.109 303.5)
-
Step 600
600
#8260AB
oklch(55.5% 0.118 303.7)
-
Step 700
700
#6E4F93
oklch(49.1% 0.11 303.6)
-
Step 800
800
#5A4177
oklch(42.7% 0.091 304.2)
-
Step 900
900 (this color)
#503E67
oklch(40.1% 0.07 303.6)
-
Step 950
950
#2B2138
oklch(27% 0.044 303.6)
#503E67 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) | #354669 | 0.046 |
| Deuteranopia (no green cones) | #384666 | 0.043 |
| Tritanopia (no blue cones) | #4C444D | 0.054 |
| Achromatopsia (no color) | #464646 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503E67
#503E67
oklch(40.1% 0.07 303.6)
- #404E21
#404E21
oklch(40% 0.07 123.8)
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 #503E67, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.063
- Dark Grey Blue #29465B ΔE 0.068
- Dusk #4E5481 ΔE 0.068
- Twilight #4E518B ΔE 0.071
- Dusty Grape #545775 ΔE 0.073
- Purple Brown #673A3F ΔE 0.077
- Charcoal Grey #3C4142 ΔE 0.077
- Charcoal #264653 ΔE 0.079
Use #503E67 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.