#5A2A91
Closest named color: Rebecca Purple (#663399). oklch(40.8% 0.161 300.7), rgb(90, 42, 145).
Aa
White text reads best on this color (9.65:1).
About this color
#5A2A91 is a dark, vivid purple. In OKLCH its lightness is 41%, its chroma 0.161 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.033 away. White text reads best on it, at 9.65:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | vivid (0.161) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.17:1 |
| White text | 9.65:1 |
Values
| HEX | #5A2A91 |
| RGB | rgb(90, 42, 145) |
| HSL | hsl(268, 55%, 37%) |
| OKLCH | oklch(40.8% 0.161 300.7) |
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 #5A2A91 | 9.65:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #5A2A91 | 2.17:1 | Fails | Lc 12.2 | Not readable |
| #5A2A91 text on white | 9.65:1 | AAA | Lc 91.7 | Preferred for body text |
| #5A2A91 text on black | 2.17:1 | Fails | Lc -10.7 | 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
#F7F4FD
oklch(97.2% 0.012 301.3)
-
Step 100
100
#EDE6FA
oklch(93.6% 0.028 301.7)
-
Step 200
200
#DED2F7
oklch(88.5% 0.052 300.1)
-
Step 300
300
#CAB3F4
oklch(80.9% 0.093 300.5)
-
Step 400
400
#B188EF
oklch(70.7% 0.151 301)
-
Step 500
500
#9E66E9
oklch(63% 0.192 300.7)
-
Step 600
600
#8A49D8
oklch(55.7% 0.209 300.6)
-
Step 700
700
#7538BB
oklch(49% 0.195 300.6)
-
Step 800
800 (this color)
#5A2A91
oklch(40.8% 0.161 300.7)
-
Step 900
900
#4E2C78
oklch(37.7% 0.125 301.2)
-
Step 950
950
#2D1B46
oklch(27% 0.078 300.6)
#5A2A91 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) | #004494 | 0.114 |
| Deuteranopia (no green cones) | #00448F | 0.115 |
| Tritanopia (no blue cones) | #4E435A | 0.121 |
| Achromatopsia (no color) | #454545 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A2A91
#5A2A91
oklch(40.8% 0.161 300.7)
- #435100
#435100
oklch(40.8% 0.097 120.4)
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 #5A2A91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.033
- Dark Slate Blue #483D8B ΔE 0.051
- Chrysanthemum #560BAD ΔE 0.059
- Blueberry #464196 ΔE 0.059
- Imperial Purple #480CA8 ΔE 0.068
- Indigo #4B0082 ΔE 0.071
- Grape #7209B7 ΔE 0.079
- Indigo Blue #3A18B1 ΔE 0.089
Use #5A2A91 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.