#5A2B88
Closest named color: Rebecca Purple (#663399). oklch(40.2% 0.149 303.5), rgb(90, 43, 136).
Aa
White text reads best on this color (9.83:1).
About this color
#5A2B88 is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.149 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.040 away. White text reads best on it, at 9.83:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.149) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.13:1 |
| White text | 9.83:1 |
Values
| HEX | #5A2B88 |
| RGB | rgb(90, 43, 136) |
| HSL | hsl(270, 52%, 35%) |
| OKLCH | oklch(40.2% 0.149 303.5) |
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 #5A2B88 | 9.83:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #5A2B88 | 2.13:1 | Fails | Lc 11.7 | Not readable |
| #5A2B88 text on white | 9.83:1 | AAA | Lc 92.2 | Preferred for body text |
| #5A2B88 text on black | 2.13:1 | Fails | Lc -10.2 | 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
#F7F3FE
oklch(97% 0.015 302.6)
-
Step 100
100
#EEE5FC
oklch(93.6% 0.032 303.5)
-
Step 200
200
#E1D0FB
oklch(88.5% 0.061 303.1)
-
Step 300
300
#D0AFFC
oklch(81% 0.112 303.6)
-
Step 400
400
#B980FA
oklch(70.7% 0.179 303.7)
-
Step 500
500
#A858F7
oklch(63.1% 0.229 303.6)
-
Step 600
600
#9434E6
oklch(55.6% 0.248 303.4)
-
Step 700
700
#7E22C8
oklch(49% 0.231 303.3)
-
Step 800
800
#6721A2
oklch(42.8% 0.192 303.6)
-
Step 900
900 (this color)
#5A2B88
oklch(40.2% 0.149 303.5)
-
Step 950
950
#31164B
oklch(27% 0.095 304.1)
#5A2B88 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) | #00428B | 0.115 |
| Deuteranopia (no green cones) | #074386 | 0.114 |
| Tritanopia (no blue cones) | #514056 | 0.109 |
| Achromatopsia (no color) | #434343 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A2B88
#5A2B88
oklch(40.2% 0.149 303.5)
- #3E5000
#3E5000
oklch(40.1% 0.099 123.2)
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 #5A2B88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.040
- Dark Slate Blue #483D8B ΔE 0.050
- Blueberry #464196 ΔE 0.061
- Indigo #4B0082 ΔE 0.070
- Chrysanthemum #560BAD ΔE 0.072
- Imperial Purple #480CA8 ΔE 0.079
- Royal Purple #4B006E ΔE 0.085
- Purple #800080 ΔE 0.088
Use #5A2B88 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.