#5A377E
Closest named color: Dark Slate Blue (#483D8B). oklch(41.3% 0.118 304.5), rgb(90, 55, 126).
Aa
White text reads best on this color (9.20:1).
About this color
#5A377E is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.118 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.040 away. White text reads best on it, at 9.20:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.118) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.28:1 |
| White text | 9.20:1 |
Values
| HEX | #5A377E |
| RGB | rgb(90, 55, 126) |
| HSL | hsl(270, 39%, 35%) |
| OKLCH | oklch(41.3% 0.118 304.5) |
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 #5A377E | 9.20:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #5A377E | 2.28:1 | Fails | Lc 13.0 | Not readable |
| #5A377E text on white | 9.20:1 | AAA | Lc 90.9 | Preferred for body text |
| #5A377E text on black | 2.28:1 | Fails | Lc -11.4 | 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
#DFD3EE
oklch(88.5% 0.039 305.6)
-
Step 300
300
#CAB6E5
oklch(80.9% 0.069 304.3)
-
Step 400
400
#B08FD8
oklch(70.7% 0.11 304.5)
-
Step 500
500
#9D71CE
oklch(63.1% 0.142 304.5)
-
Step 600
600
#8858BA
oklch(55.7% 0.152 304.6)
-
Step 700
700
#7347A1
oklch(49.1% 0.143 304.2)
-
Step 800
800 (this color)
#5A377E
oklch(41.3% 0.118 304.5)
-
Step 900
900
#4D3368
oklch(37.7% 0.092 305.1)
-
Step 950
950
#2D1E3D
oklch(26.9% 0.059 305.1)
#5A377E 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) | #1E4780 | 0.091 |
| Deuteranopia (no green cones) | #2A487C | 0.083 |
| Tritanopia (no blue cones) | #544455 | 0.086 |
| Achromatopsia (no color) | #484848 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A377E
#5A377E
oklch(41.3% 0.118 304.5)
- #3F5400
#3F5400
oklch(41.3% 0.103 124.5)
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 #5A377E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.040
- Rebecca Purple #663399 ΔE 0.050
- Blueberry #464196 ΔE 0.055
- Twilight #4E518B ΔE 0.069
- Dusk #4E5481 ΔE 0.078
- Cobalt #1E488F ΔE 0.093
- Dusty Grape #545775 ΔE 0.093
- Indigo #4B0082 ΔE 0.096
Use #5A377E 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.