#5A57AC
Closest named color: Iris (#6258C4). oklch(50.2% 0.132 282.1), rgb(90, 87, 172).
Aa
White text reads best on this color (6.18:1).
About this color
#5A57AC is a medium-dark, moderately saturated purple. In OKLCH its lightness is 50%, its chroma 0.132 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.040 away. White text reads best on it, at 6.18:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.39:1 |
| White text | 6.18:1 |
Values
| HEX | #5A57AC |
| RGB | rgb(90, 87, 172) |
| HSL | hsl(242, 34%, 51%) |
| OKLCH | oklch(50.2% 0.132 282.1) |
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 #5A57AC | 6.18:1 | AA | Lc -85.8 | Fine for body text |
| Black text on #5A57AC | 3.39:1 | AA large text | Lc 23.4 | Dividers and decoration only |
| #5A57AC text on white | 6.18:1 | AA | Lc 80.7 | Fine for body text |
| #5A57AC text on black | 3.39:1 | AA large text | Lc -21.2 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D5D7F1
oklch(88.6% 0.036 282.1)
-
Step 300
300
#B9BCE9
oklch(80.8% 0.063 281.9)
-
Step 400
400
#9699DF
oklch(70.8% 0.102 281.6)
-
Step 500
500
#7E7ED6
oklch(63.2% 0.131 282)
-
Step 600
600
#6865C3
oklch(55.5% 0.142 282.2)
-
Step 700
700 (this color)
#5A57AC
oklch(50.2% 0.132 282.1)
-
Step 800
800
#474588
oklch(42.7% 0.108 282.1)
-
Step 900
900
#3B3A6D
oklch(37.6% 0.086 282.3)
-
Step 950
950
#232340
oklch(27.2% 0.053 282.3)
#5A57AC 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) | #3264AF | 0.054 |
| Deuteranopia (no green cones) | #2C5EAA | 0.056 |
| Tritanopia (no blue cones) | #3D6979 | 0.114 |
| Achromatopsia (no color) | #616161 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A57AC
#5A57AC
oklch(50.2% 0.132 282.1)
- #706500
#706500
oklch(50.1% 0.105 102)
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 #5A57AC, closest first.
No curated palette has a color within ΔE 0.04 of #5A57AC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.040
- Dusky Blue #475F94 ΔE 0.054
- Twilight #4E518B ΔE 0.057
- French Blue #436BAD ΔE 0.058
- Slate Blue #6A5ACD ΔE 0.058
- Denim Blue #3B5B92 ΔE 0.062
- Light Indigo #6D5ACF ΔE 0.063
- Dark Periwinkle #665FD1 ΔE 0.063
Use #5A57AC 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.