#503A8C
Closest named color: Dark Slate Blue (#483D8B). oklch(41.7% 0.131 292.2), rgb(80, 58, 140).
Aa
White text reads best on this color (9.03:1).
About this color
#503A8C is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.131 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.015 away. White text reads best on it, at 9.03:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.131) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.32:1 |
| White text | 9.03:1 |
Values
| HEX | #503A8C |
| RGB | rgb(80, 58, 140) |
| HSL | hsl(256, 41%, 39%) |
| OKLCH | oklch(41.7% 0.131 292.2) |
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 #503A8C | 9.03:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #503A8C | 2.32:1 | Fails | Lc 13.5 | Not readable |
| #503A8C text on white | 9.03:1 | AAA | Lc 90.5 | Preferred for body text |
| #503A8C text on black | 2.32:1 | Fails | Lc -11.8 | 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 800.
-
Step 50
50
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE8F8
oklch(93.7% 0.022 291.7)
-
Step 200
200
#D9D5F4
oklch(88.6% 0.042 291.4)
-
Step 300
300
#C1B8EE
oklch(80.8% 0.076 292.3)
-
Step 400
400
#A392E6
oklch(70.8% 0.121 292.3)
-
Step 500
500
#8D74DF
oklch(63.1% 0.157 292)
-
Step 600
600
#785ACC
oklch(55.5% 0.169 292.1)
-
Step 700
700
#6549B1
oklch(49% 0.158 291.9)
-
Step 800
800 (this color)
#503A8C
oklch(41.7% 0.131 292.2)
-
Step 900
900
#443572
oklch(37.7% 0.101 292.2)
-
Step 950
950
#281F43
oklch(27% 0.065 293)
#503A8C 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) | #0A4A8F | 0.082 |
| Deuteranopia (no green cones) | #12478A | 0.079 |
| Tritanopia (no blue cones) | #404C5D | 0.106 |
| Achromatopsia (no color) | #494949 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503A8C
#503A8C
oklch(41.7% 0.131 292.2)
- #4E5100
#4E5100
oklch(41.8% 0.093 112.2)
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 #503A8C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.015
- Blueberry #464196 ΔE 0.027
- Rebecca Purple #663399 ΔE 0.047
- Twilight #4E518B ΔE 0.061
- Cobalt #1E488F ΔE 0.071
- Dusk #4E5481 ΔE 0.076
- Dusk Blue #26538D ΔE 0.081
- Sapphire #2138AB ΔE 0.085
Use #503A8C 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.