#5B5CA5
Closest named color: Dusky Blue (#475F94). oklch(50.9% 0.114 280.9), rgb(91, 92, 165).
Aa
White text reads best on this color (5.96:1).
About this color
#5B5CA5 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 51%, its chroma 0.114 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.041 away. White text reads best on it, at 5.96:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.51:1 |
| White text | 5.96:1 |
Values
| HEX | #5B5CA5 |
| RGB | rgb(91, 92, 165) |
| HSL | hsl(239, 29%, 50%) |
| OKLCH | oklch(50.9% 0.114 280.9) |
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 #5B5CA5 | 5.96:1 | AA | Lc -84.9 | Fine for body text |
| Black text on #5B5CA5 | 3.51:1 | AA large text | Lc 24.3 | Dividers and decoration only |
| #5B5CA5 text on white | 5.96:1 | AA | Lc 79.7 | Fine for body text |
| #5B5CA5 text on black | 3.51:1 | AA large text | Lc -22.1 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F5
oklch(93.7% 0.016 282.3)
-
Step 200
200
#D5D7EE
oklch(88.5% 0.032 281.8)
-
Step 300
300
#BABDE4
oklch(80.9% 0.055 281.6)
-
Step 400
400
#969AD7
oklch(70.6% 0.089 281)
-
Step 500
500
#7E81CC
oklch(63.2% 0.112 280.9)
-
Step 600
600
#6769B9
oklch(55.6% 0.122 280.6)
-
Step 700
700 (this color)
#5B5CA5
oklch(50.9% 0.114 280.9)
-
Step 800
800
#464781
oklch(42.6% 0.095 280.8)
-
Step 900
900
#3B3C68
oklch(37.7% 0.074 281.2)
-
Step 950
950
#22233D
oklch(26.9% 0.048 281)
#5B5CA5 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) | #4066A8 | 0.040 |
| Deuteranopia (no green cones) | #3C61A3 | 0.041 |
| Tritanopia (no blue cones) | #436B78 | 0.100 |
| Achromatopsia (no color) | #636363 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B5CA5
#5B5CA5
oklch(50.9% 0.114 280.9)
- #736700
#736700
oklch(50.9% 0.106 101.4)
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 #5B5CA5, closest first.
No curated palette has a color within ΔE 0.04 of #5B5CA5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.041
- French Blue #436BAD ΔE 0.047
- Iris #6258C4 ΔE 0.052
- Twilight #4E518B ΔE 0.053
- Denim Blue #3B5B92 ΔE 0.054
- Mid Blue #276AB3 ΔE 0.063
- Dusk #4E5481 ΔE 0.063
- Denim #3B638C ΔE 0.064
Use #5B5CA5 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.