#503B68
Closest named color: Dark Slate Blue (#483D8B). oklch(39.6% 0.078 304.6), rgb(80, 59, 104).
Aa
White text reads best on this color (9.69:1).
About this color
#503B68 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.078 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.060 away. White text reads best on it, at 9.69:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.078) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.16:1 |
| White text | 9.69:1 |
Values
| HEX | #503B68 |
| RGB | rgb(80, 59, 104) |
| HSL | hsl(268, 28%, 32%) |
| OKLCH | oklch(39.6% 0.078 304.6) |
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 #503B68 | 9.69:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #503B68 | 2.16:1 | Fails | Lc 11.6 | Not readable |
| #503B68 text on white | 9.69:1 | AAA | Lc 92.4 | Preferred for body text |
| #503B68 text on black | 2.16:1 | Fails | Lc -10.1 | 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
#ECE7F3
oklch(93.5% 0.017 304.8)
-
Step 200
200
#DED4EB
oklch(88.5% 0.033 305.3)
-
Step 300
300
#C9B8E0
oklch(81% 0.058 304.4)
-
Step 400
400
#AE92D0
oklch(70.8% 0.094 304.8)
-
Step 500
500
#9A76C3
oklch(63.1% 0.118 304.8)
-
Step 600
600
#855DB0
oklch(55.6% 0.13 304.8)
-
Step 700
700
#704D97
oklch(49.1% 0.119 304.2)
-
Step 800
800
#5B3F7A
oklch(42.6% 0.099 304.4)
-
Step 900
900 (this color)
#503B68
oklch(39.6% 0.078 304.6)
-
Step 950
950
#2C203A
oklch(27% 0.049 304.5)
#503B68 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) | #30446A | 0.054 |
| Deuteranopia (no green cones) | #354467 | 0.049 |
| Tritanopia (no blue cones) | #4C424C | 0.058 |
| Achromatopsia (no color) | #444444 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503B68
#503B68
oklch(39.6% 0.078 304.6)
- #3D4D1A
#3D4D1A
oklch(39.4% 0.077 124.6)
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 #503B68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.060
- Dark Grey Blue #29465B ΔE 0.073
- Dusk #4E5481 ΔE 0.074
- Twilight #4E518B ΔE 0.076
- Blueberry #464196 ΔE 0.078
- Dusty Grape #545775 ΔE 0.081
- Purple Brown #673A3F ΔE 0.081
- Charcoal Grey #3C4142 ΔE 0.082
Use #503B68 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.