#503B6E
Closest named color: Dark Slate Blue (#483D8B). oklch(39.9% 0.086 301.6), rgb(80, 59, 110).
Aa
White text reads best on this color (9.58:1).
About this color
#503B6E is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.086 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 0.050 away. White text reads best on it, at 9.58:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.086) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.19:1 |
| White text | 9.58:1 |
Values
| HEX | #503B6E |
| RGB | rgb(80, 59, 110) |
| HSL | hsl(265, 30%, 33%) |
| OKLCH | oklch(39.9% 0.086 301.6) |
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 #503B6E | 9.58:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #503B6E | 2.19:1 | Fails | Lc 11.9 | Not readable |
| #503B6E text on white | 9.58:1 | AAA | Lc 92.1 | Preferred for body text |
| #503B6E text on black | 2.19:1 | 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
#ECE7F5
oklch(93.6% 0.019 302.2)
-
Step 200
200
#DDD4EE
oklch(88.5% 0.037 301.4)
-
Step 300
300
#C8B7E4
oklch(80.8% 0.065 302.2)
-
Step 400
400
#AC91D7
oklch(70.7% 0.104 301.5)
-
Step 500
500
#9874CC
oklch(63% 0.133 301.6)
-
Step 600
600
#835BB9
oklch(55.6% 0.145 301.5)
-
Step 700
700
#6F4B9F
oklch(49.2% 0.133 301.5)
-
Step 800
800
#5A3E81
oklch(42.7% 0.11 301.2)
-
Step 900
900 (this color)
#503B6E
oklch(39.9% 0.086 301.6)
-
Step 950
950
#2B1F3D
oklch(26.9% 0.056 301.2)
#503B6E 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) | #2D4570 | 0.058 |
| Deuteranopia (no green cones) | #32456D | 0.053 |
| Tritanopia (no blue cones) | #4B444F | 0.067 |
| Achromatopsia (no color) | #454545 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503B6E
#503B6E
oklch(39.9% 0.086 301.6)
- #404E0F
#404E0F
oklch(39.8% 0.086 121.6)
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 #503B6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.050
- Blueberry #464196 ΔE 0.068
- Twilight #4E518B ΔE 0.070
- Dusk #4E5481 ΔE 0.071
- Dark Grey Blue #29465B ΔE 0.078
- Dusty Grape #545775 ΔE 0.081
- Rebecca Purple #663399 ΔE 0.085
- Twilight Blue #0A437A ΔE 0.085
Use #503B6E 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.