#503B6D
Closest named color: Dark Slate Blue (#483D8B). oklch(39.8% 0.085 302.1), rgb(80, 59, 109).
Aa
White text reads best on this color (9.59:1).
About this color
#503B6D is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.085 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.052 away. White text reads best on it, at 9.59:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.085) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.18:1 |
| White text | 9.59:1 |
Values
| HEX | #503B6D |
| RGB | rgb(80, 59, 109) |
| HSL | hsl(265, 30%, 33%) |
| OKLCH | oklch(39.8% 0.085 302.1) |
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 #503B6D | 9.59:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #503B6D | 2.18:1 | Fails | Lc 11.8 | Not readable |
| #503B6D text on white | 9.59:1 | AAA | Lc 92.1 | Preferred for body text |
| #503B6D text on black | 2.18:1 | Fails | Lc -10.3 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#ECE7F4
oklch(93.6% 0.018 303.4)
-
Step 200
200
#DDD4ED
oklch(88.5% 0.035 302)
-
Step 300
300
#C8B7E4
oklch(80.8% 0.065 302.2)
-
Step 400
400
#AC91D6
oklch(70.6% 0.103 301.8)
-
Step 500
500
#9875CA
oklch(63.1% 0.129 301.8)
-
Step 600
600
#835CB7
oklch(55.6% 0.141 301.8)
-
Step 700
700
#6F4B9E
oklch(49.1% 0.132 301.8)
-
Step 800
800
#5B3E80
oklch(42.8% 0.109 302.3)
-
Step 900
900 (this color)
#503B6D
oklch(39.8% 0.085 302.1)
-
Step 950
950
#2B203C
oklch(27.1% 0.052 301.1)
#503B6D 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) | #2E456F | 0.057 |
| Deuteranopia (no green cones) | #32456C | 0.053 |
| Tritanopia (no blue cones) | #4B444E | 0.067 |
| Achromatopsia (no color) | #454545 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503B6D
#503B6D
oklch(39.8% 0.085 302.1)
- #404E12
#404E12
oklch(39.9% 0.084 121.8)
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 #503B6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.052
- Blueberry #464196 ΔE 0.070
- Twilight #4E518B ΔE 0.071
- Dusk #4E5481 ΔE 0.072
- Dark Grey Blue #29465B ΔE 0.077
- Dusty Grape #545775 ΔE 0.081
- Twilight Blue #0A437A ΔE 0.085
- Rebecca Purple #663399 ΔE 0.086
Use #503B6D 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.