#5A437D
Closest named color: Twilight (#4E518B). oklch(43.4% 0.096 300.8), rgb(90, 67, 125).
Aa
White text reads best on this color (8.28:1).
About this color
#5A437D is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.096 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.043 away. White text reads best on it, at 8.28:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.096) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.53:1 |
| White text | 8.28:1 |
Values
| HEX | #5A437D |
| RGB | rgb(90, 67, 125) |
| HSL | hsl(264, 30%, 38%) |
| OKLCH | oklch(43.4% 0.096 300.8) |
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 #5A437D | 8.28:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #5A437D | 2.53:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #5A437D text on white | 8.28:1 | AAA | Lc 88.5 | Fine for body text |
| #5A437D text on black | 2.53:1 | Fails | Lc -13.7 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE8F3
oklch(93.7% 0.015 298.6)
-
Step 200
200
#DCD5EB
oklch(88.5% 0.031 300.3)
-
Step 300
300
#C6B9E0
oklch(80.9% 0.056 300.4)
-
Step 400
400
#AA94D0
oklch(70.8% 0.089 301)
-
Step 500
500
#9578C4
oklch(63.1% 0.115 300.7)
-
Step 600
600
#8060B0
oklch(55.6% 0.124 300.9)
-
Step 700
700
#6C4F97
oklch(49.1% 0.115 300.8)
-
Step 800
800 (this color)
#5A437D
oklch(43.4% 0.096 300.8)
-
Step 900
900
#483763
oklch(37.6% 0.076 300.6)
-
Step 950
950
#2A213A
oklch(27% 0.047 299.9)
#5A437D 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) | #334E7F | 0.063 |
| Deuteranopia (no green cones) | #384E7C | 0.058 |
| Tritanopia (no blue cones) | #534D5A | 0.074 |
| Achromatopsia (no color) | #4E4E4E | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A437D
#5A437D
oklch(43.4% 0.096 300.8)
- #4A580F
#4A580F
oklch(43.4% 0.095 120.3)
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 #5A437D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.043
- Dark Slate Blue #483D8B ΔE 0.045
- Dusk #4E5481 ΔE 0.049
- Blueberry #464196 ΔE 0.055
- Dusty Grape #545775 ΔE 0.062
- Rebecca Purple #663399 ΔE 0.065
- YInMn Blue #415A77 ΔE 0.076
- Denim Blue #3B5B92 ΔE 0.077
Use #5A437D 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.