#5A51CA
Closest named color: Iris (#6258C4). oklch(51.3% 0.181 281.2), rgb(90, 81, 202).
Aa
White text reads best on this color (6.06:1).
About this color
#5A51CA is a medium-dark, vivid purple. In OKLCH its lightness is 51%, its chroma 0.181 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.024 away. White text reads best on it, at 6.06:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.181) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.46:1 |
| White text | 6.06:1 |
Values
| HEX | #5A51CA |
| RGB | rgb(90, 81, 202) |
| HSL | hsl(244, 53%, 55%) |
| OKLCH | oklch(51.3% 0.181 281.2) |
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 #5A51CA | 6.06:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #5A51CA | 3.46:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #5A51CA text on white | 6.06:1 | AA | Lc 79.9 | Fine for body text |
| #5A51CA text on black | 3.46:1 | AA large text | Lc -22.0 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E8FB
oklch(93.5% 0.026 281.1)
-
Step 200
200
#D3D6F9
oklch(88.5% 0.048 281.5)
-
Step 300
300
#B6BAF9
oklch(80.8% 0.089 281.4)
-
Step 400
400
#9294F5
oklch(70.6% 0.14 281.3)
-
Step 500
500
#7A76F1
oklch(63% 0.179 281.4)
-
Step 600
600
#655BE0
oklch(55.5% 0.195 281.3)
-
Step 700
700 (this color)
#5A51CA
oklch(51.3% 0.181 281.2)
-
Step 800
800
#453E9D
oklch(42.8% 0.149 281.3)
-
Step 900
900
#39367D
oklch(37.7% 0.117 281.1)
-
Step 950
950
#212049
oklch(26.9% 0.074 281.3)
#5A51CA 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) | #0067CE | 0.080 |
| Deuteranopia (no green cones) | #005EC8 | 0.076 |
| Tritanopia (no blue cones) | #236E86 | 0.155 |
| Achromatopsia (no color) | #626262 | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A51CA
#5A51CA
oklch(51.3% 0.181 281.2)
- #746800
#746800
oklch(51.3% 0.107 101.5)
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 #5A51CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.024
- Warm Blue #4B57DB ΔE 0.034
- Bluey Purple #6241C7 ΔE 0.035
- Slate Blue #6A5ACD ΔE 0.035
- Light Indigo #6D5ACF ΔE 0.039
- Dark Periwinkle #665FD1 ΔE 0.041
- Blue With A Hint Of Purple #533CC6 ΔE 0.047
- Blurple #5539CC ΔE 0.051
Use #5A51CA 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.