#503387
Closest named color: Dark Slate Blue (#483D8B). oklch(40.2% 0.134 295.6), rgb(80, 51, 135).
Aa
White text reads best on this color (9.70:1).
About this color
#503387 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.134 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.027 away. White text reads best on it, at 9.70:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.16:1 |
| White text | 9.70:1 |
Values
| HEX | #503387 |
| RGB | rgb(80, 51, 135) |
| HSL | hsl(261, 45%, 36%) |
| OKLCH | oklch(40.2% 0.134 295.6) |
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 #503387 | 9.70:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #503387 | 2.16:1 | Fails | Lc 11.8 | Not readable |
| #503387 text on white | 9.70:1 | AAA | Lc 92.1 | Preferred for body text |
| #503387 text on black | 2.16:1 | 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
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#EBE6FC
oklch(93.5% 0.03 296.2)
-
Step 200
200
#DCD2FB
oklch(88.5% 0.057 296.4)
-
Step 300
300
#C6B4FB
oklch(81% 0.1 295.7)
-
Step 400
400
#AA89F9
oklch(70.8% 0.161 295.6)
-
Step 500
500
#9766F6
oklch(63.2% 0.206 295.6)
-
Step 600
600
#8347E4
oklch(55.6% 0.224 295.7)
-
Step 700
700
#6F36C6
oklch(49% 0.208 295.7)
-
Step 800
800
#5A2FA0
oklch(42.7% 0.172 295.6)
-
Step 900
900 (this color)
#503387
oklch(40.2% 0.134 295.6)
-
Step 950
950
#2B1B4B
oklch(27.1% 0.085 295.5)
#503387 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) | #00458A | 0.092 |
| Deuteranopia (no green cones) | #094385 | 0.089 |
| Tritanopia (no blue cones) | #424558 | 0.104 |
| Achromatopsia (no color) | #444444 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503387
#503387
oklch(40.2% 0.134 295.6)
- #464D00
#464D00
oklch(40% 0.091 115.6)
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 #503387, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.027
- Blueberry #464196 ΔE 0.042
- Rebecca Purple #663399 ΔE 0.051
- Twilight #4E518B ΔE 0.077
- Indigo #4B0082 ΔE 0.079
- Imperial Purple #480CA8 ΔE 0.080
- Cobalt #1E488F ΔE 0.081
- Chrysanthemum #560BAD ΔE 0.081
Use #503387 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.