#5A37A7
Closest named color: Rebecca Purple (#663399). oklch(44.4% 0.17 292.4), rgb(90, 55, 167).
Aa
White text reads best on this color (8.27:1).
About this color
#5A37A7 is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.170 and its hue 292°. 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 8.27:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.170) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.53:1 |
| White text | 8.27:1 |
Values
| HEX | #5A37A7 |
| RGB | rgb(90, 55, 167) |
| HSL | hsl(259, 50%, 44%) |
| OKLCH | oklch(44.4% 0.17 292.4) |
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 #5A37A7 | 8.27:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #5A37A7 | 2.53:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #5A37A7 text on white | 8.27:1 | AAA | Lc 88.0 | Fine for body text |
| #5A37A7 text on black | 2.53:1 | Fails | Lc -14.1 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#EAE7FC
oklch(93.7% 0.028 292.4)
-
Step 200
200
#D9D3FB
oklch(88.4% 0.055 292.1)
-
Step 300
300
#C2B5FC
oklch(80.9% 0.1 292.4)
-
Step 400
400
#A58BFA
oklch(70.7% 0.159 292.6)
-
Step 500
500
#9169F7
oklch(63.1% 0.203 292.6)
-
Step 600
600
#7D4BE6
oklch(55.7% 0.221 292.6)
-
Step 700
700
#693AC8
oklch(49% 0.206 292.2)
-
Step 800
800 (this color)
#5A37A7
oklch(44.4% 0.17 292.4)
-
Step 900
900
#462E80
oklch(37.7% 0.132 292.4)
-
Step 950
950
#291C4B
oklch(27.1% 0.084 292.7)
#5A37A7 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) | #0050AA | 0.101 |
| Deuteranopia (no green cones) | #004CA5 | 0.099 |
| Tritanopia (no blue cones) | #43526A | 0.135 |
| Achromatopsia (no color) | #4E4E4E | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A37A7
#5A37A7
oklch(44.4% 0.17 292.4)
- #555800
#555800
oklch(44.3% 0.098 112.1)
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 #5A37A7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.033
- Blueberry #464196 ΔE 0.048
- Blue With A Hint Of Purple #533CC6 ΔE 0.052
- Dark Slate Blue #483D8B ΔE 0.056
- Bluey Purple #6241C7 ΔE 0.057
- Blurple #5539CC ΔE 0.060
- Chrysanthemum #560BAD ΔE 0.061
- Grape #7209B7 ΔE 0.070
Use #5A37A7 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.