#5D2978
Closest named color: Rebecca Purple (#663399). oklch(39.1% 0.135 312.1), rgb(93, 41, 120).
Aa
White text reads best on this color (10.22:1).
About this color
#5D2978 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.135 and its hue 312°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.060 away. White text reads best on it, at 10.22:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.05:1 |
| White text | 10.22:1 |
Values
| HEX | #5D2978 |
| RGB | rgb(93, 41, 120) |
| HSL | hsl(279, 49%, 32%) |
| OKLCH | oklch(39.1% 0.135 312.1) |
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 #5D2978 | 10.22:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #5D2978 | 2.05:1 | Fails | Lc 10.7 | Not readable |
| #5D2978 text on white | 10.22:1 | AAA | Lc 93.2 | Preferred for body text |
| #5D2978 text on black | 2.05:1 | Fails | Lc -9.3 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#F0E5F8
oklch(93.6% 0.028 311.3)
-
Step 200
200
#E6CFF4
oklch(88.5% 0.056 312.8)
-
Step 300
300
#D7AEF0
oklch(80.9% 0.101 312.3)
-
Step 400
400
#C280E8
oklch(70.7% 0.161 312.1)
-
Step 500
500
#B25AE1
oklch(63% 0.206 312)
-
Step 600
600
#9E39CF
oklch(55.6% 0.224 312.1)
-
Step 700
700
#8729B3
oklch(49.1% 0.208 312.1)
-
Step 800
800
#6E2591
oklch(42.8% 0.172 312.2)
-
Step 900
900 (this color)
#5D2978
oklch(39.1% 0.135 312.1)
-
Step 950
950
#341744
oklch(27% 0.085 311.8)
#5D2978 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) | #053E7A | 0.123 |
| Deuteranopia (no green cones) | #234276 | 0.107 |
| Tritanopia (no blue cones) | #5A384C | 0.091 |
| Achromatopsia (no color) | #414141 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D2978
#5D2978
oklch(39.1% 0.135 312.1)
- #2E5100
#2E5100
oklch(39.3% 0.109 132.2)
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 #5D2978, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.060
- Dark Slate Blue #483D8B ΔE 0.064
- Grape Purple #5D1451 ΔE 0.073
- Indigo #4B0082 ΔE 0.074
- Royal Purple #4B006E ΔE 0.077
- Blueberry #464196 ΔE 0.080
- Purple #800080 ΔE 0.080
- Rich Purple #720058 ΔE 0.081
Use #5D2978 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.