#5A337D
Closest named color: Dark Slate Blue (#483D8B). oklch(40.6% 0.123 306), rgb(90, 51, 125).
Aa
White text reads best on this color (9.52:1).
About this color
#5A337D is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.123 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.044 away. White text reads best on it, at 9.52:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.20:1 |
| White text | 9.52:1 |
Values
| HEX | #5A337D |
| RGB | rgb(90, 51, 125) |
| HSL | hsl(272, 42%, 35%) |
| OKLCH | oklch(40.6% 0.123 306) |
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 #5A337D | 9.52:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #5A337D | 2.20:1 | Fails | Lc 12.3 | Not readable |
| #5A337D text on white | 9.52:1 | AAA | Lc 91.7 | Preferred for body text |
| #5A337D text on black | 2.20:1 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE7F5
oklch(93.7% 0.02 305.3)
-
Step 200
200
#DFD3EF
oklch(88.5% 0.04 304.9)
-
Step 300
300
#CCB5E6
oklch(80.9% 0.072 306.1)
-
Step 400
400
#B28DDA
oklch(70.6% 0.116 305.7)
-
Step 500
500
#A06FCF
oklch(63.1% 0.147 306.2)
-
Step 600
600
#8B55BC
oklch(55.6% 0.16 306.1)
-
Step 700
700
#7645A2
oklch(49.2% 0.148 306)
-
Step 800
800 (this color)
#5A337D
oklch(40.6% 0.123 306)
-
Step 900
900
#4E3269
oklch(37.7% 0.095 305.8)
-
Step 950
950
#2E1E3E
oklch(27.1% 0.061 305.8)
#5A337D 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) | #17447F | 0.100 |
| Deuteranopia (no green cones) | #26467B | 0.090 |
| Tritanopia (no blue cones) | #544153 | 0.089 |
| Achromatopsia (no color) | #454545 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A337D
#5A337D
oklch(40.6% 0.123 306)
- #3B5200
#3B5200
oklch(40.4% 0.103 126)
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 #5A337D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.044
- Rebecca Purple #663399 ΔE 0.051
- Blueberry #464196 ΔE 0.060
- Twilight #4E518B ΔE 0.079
- Dusk #4E5481 ΔE 0.088
- Indigo #4B0082 ΔE 0.088
- Grape Purple #5D1451 ΔE 0.091
- Purple #800080 ΔE 0.093
Use #5A337D 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.