#5A2C77
Closest named color: Dark Slate Blue (#483D8B). oklch(39.1% 0.128 310.1), rgb(90, 44, 119).
Aa
White text reads best on this color (10.18:1).
About this color
#5A2C77 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.128 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.058 away. White text reads best on it, at 10.18:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.06:1 |
| White text | 10.18:1 |
Values
| HEX | #5A2C77 |
| RGB | rgb(90, 44, 119) |
| HSL | hsl(277, 46%, 32%) |
| OKLCH | oklch(39.1% 0.128 310.1) |
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 #5A2C77 | 10.18:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #5A2C77 | 2.06:1 | Fails | Lc 10.7 | Not readable |
| #5A2C77 text on white | 10.18:1 | AAA | Lc 93.2 | Preferred for body text |
| #5A2C77 text on black | 2.06:1 | Fails | Lc -9.3 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#F0E5F8
oklch(93.6% 0.028 311.3)
-
Step 200
200
#E4D0F4
oklch(88.5% 0.053 310.1)
-
Step 300
300
#D4B0EF
oklch(81% 0.095 310.3)
-
Step 400
400
#BE83E7
oklch(70.7% 0.153 310.2)
-
Step 500
500
#AD5FE0
oklch(63.1% 0.196 309.8)
-
Step 600
600
#9940CD
oklch(55.6% 0.212 310.2)
-
Step 700
700
#8330B2
oklch(49.2% 0.198 310.2)
-
Step 800
800
#6A2A90
oklch(42.7% 0.164 309.9)
-
Step 900
900 (this color)
#5A2C77
oklch(39.1% 0.128 310.1)
-
Step 950
950
#321843
oklch(26.8% 0.081 309.9)
#5A2C77 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) | #0E3F79 | 0.112 |
| Deuteranopia (no green cones) | #234275 | 0.099 |
| Tritanopia (no blue cones) | #563A4D | 0.088 |
| Achromatopsia (no color) | #414141 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A2C77
#5A2C77
oklch(39.1% 0.128 310.1)
- #325000
#325000
oklch(39.2% 0.106 130)
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 #5A2C77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.058
- Rebecca Purple #663399 ΔE 0.062
- Blueberry #464196 ΔE 0.075
- Grape Purple #5D1451 ΔE 0.075
- Indigo #4B0082 ΔE 0.077
- Royal Purple #4B006E ΔE 0.079
- Rich Purple #720058 ΔE 0.086
- Purple #800080 ΔE 0.088
Use #5A2C77 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.