#5F37AB
Closest named color: Rebecca Purple (#663399). oklch(45.2% 0.175 294.1), rgb(95, 55, 171).
Aa
White text reads best on this color (8.01:1).
About this color
#5F37AB is a medium-dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.175 and its hue 294°. 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 8.01:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.175) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.62:1 |
| White text | 8.01:1 |
Values
| HEX | #5F37AB |
| RGB | rgb(95, 55, 171) |
| HSL | hsl(261, 51%, 44%) |
| OKLCH | oklch(45.2% 0.175 294.1) |
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 #5F37AB | 8.01:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #5F37AB | 2.62:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #5F37AB text on white | 8.01:1 | AAA | Lc 87.2 | Fine for body text |
| #5F37AB text on black | 2.62:1 | Fails | Lc -14.9 | 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
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#EAE6FC
oklch(93.5% 0.03 294.2)
-
Step 200
200
#DBD3FC
oklch(88.6% 0.056 294.2)
-
Step 300
300
#C4B4FD
oklch(80.9% 0.103 294)
-
Step 400
400
#A889FB
oklch(70.7% 0.164 294.4)
-
Step 500
500
#9466F9
oklch(63.1% 0.21 294)
-
Step 600
600
#8047E8
oklch(55.6% 0.228 293.9)
-
Step 700
700
#6D36C9
oklch(49% 0.212 294.3)
-
Step 800
800 (this color)
#5F37AB
oklch(45.2% 0.175 294.1)
-
Step 900
900
#482C81
oklch(37.7% 0.136 294)
-
Step 950
950
#2A1B4C
oklch(27.1% 0.087 293.9)
#5F37AB 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) | #0052AF | 0.108 |
| Deuteranopia (no green cones) | #004EA9 | 0.107 |
| Tritanopia (no blue cones) | #4A536C | 0.138 |
| Achromatopsia (no color) | #505050 | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F37AB
#5F37AB
oklch(45.2% 0.175 294.1)
- #555B00
#555B00
oklch(45% 0.101 114.1)
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 #5F37AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.033
- Bluey Purple #6241C7 ΔE 0.049
- Blue With A Hint Of Purple #533CC6 ΔE 0.049
- Blurple #5539CC ΔE 0.056
- Blueberry #464196 ΔE 0.057
- Chrysanthemum #560BAD ΔE 0.063
- Grape #7209B7 ΔE 0.063
- Purple Blue #5D21D0 ΔE 0.066
Use #5F37AB 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.