#524F91
Closest named color: Twilight (#4E518B). oklch(46.3% 0.105 283.5), rgb(82, 79, 145).
Aa
White text reads best on this color (7.27:1).
About this color
#524F91 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.105 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.014 away. White text reads best on it, at 7.27:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.88:1 |
| White text | 7.27:1 |
Values
| HEX | #524F91 |
| RGB | rgb(82, 79, 145) |
| HSL | hsl(243, 29%, 44%) |
| OKLCH | oklch(46.3% 0.105 283.5) |
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 #524F91 | 7.27:1 | AAA | Lc -90.0 | Preferred for body text |
| Black text on #524F91 | 2.88:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #524F91 text on white | 7.27:1 | AAA | Lc 85.1 | Fine for body text |
| #524F91 text on black | 2.88:1 | Fails | Lc -16.9 | Dividers and decoration only |
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 700.
-
Step 50
50
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E8E9F4
oklch(93.6% 0.015 281.9)
-
Step 200
200
#D6D7EC
oklch(88.5% 0.029 283.6)
-
Step 300
300
#BCBDE1
oklch(80.9% 0.051 284)
-
Step 400
400
#999AD2
oklch(70.6% 0.081 283.3)
-
Step 500
500
#8181C6
oklch(63.2% 0.103 283.1)
-
Step 600
600
#6B69B3
oklch(55.6% 0.113 283.3)
-
Step 700
700 (this color)
#524F91
oklch(46.3% 0.105 283.5)
-
Step 800
800
#49477D
oklch(42.6% 0.088 283.7)
-
Step 900
900
#3D3C64
oklch(37.6% 0.068 283.8)
-
Step 950
950
#24233B
oklch(26.9% 0.044 284.9)
#524F91 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) | #365993 | 0.043 |
| Deuteranopia (no green cones) | #34548F | 0.041 |
| Tritanopia (no blue cones) | #3F5C69 | 0.089 |
| Achromatopsia (no color) | #575757 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #524F91
#524F91
oklch(46.3% 0.105 283.5)
- #635B00
#635B00
oklch(46.4% 0.098 103.6)
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 #524F91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.014
- Dusk #4E5481 ΔE 0.033
- Denim Blue #3B5B92 ΔE 0.042
- Dusky Blue #475F94 ΔE 0.045
- Blueberry #464196 ΔE 0.046
- Dark Slate Blue #483D8B ΔE 0.052
- Dusk Blue #26538D ΔE 0.055
- Light Navy Blue #2E5A88 ΔE 0.056
Use #524F91 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.