#5E51C9
Closest named color: Iris (#6258C4). oklch(51.5% 0.179 283), rgb(94, 81, 201).
Aa
White text reads best on this color (6.00:1).
About this color
#5E51C9 is a medium-dark, vivid purple. In OKLCH its lightness is 52%, its chroma 0.179 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.020 away. White text reads best on it, at 6.00:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.179) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.49:1 |
| White text | 6.00:1 |
Values
| HEX | #5E51C9 |
| RGB | rgb(94, 81, 201) |
| HSL | hsl(247, 53%, 55%) |
| OKLCH | oklch(51.5% 0.179 283) |
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 #5E51C9 | 6.00:1 | AA | Lc -84.8 | Fine for body text |
| Black text on #5E51C9 | 3.49:1 | AA large text | Lc 24.4 | Dividers and decoration only |
| #5E51C9 text on white | 6.00:1 | AA | Lc 79.6 | Fine for body text |
| #5E51C9 text on black | 3.49:1 | AA large text | Lc -22.2 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8FB
oklch(93.6% 0.026 283.5)
-
Step 200
200
#D4D6F9
oklch(88.6% 0.048 282.8)
-
Step 300
300
#B8BAF8
oklch(80.9% 0.087 282.8)
-
Step 400
400
#9594F4
oklch(70.8% 0.139 282.7)
-
Step 500
500
#7E76F0
oklch(63.2% 0.177 283)
-
Step 600
600
#695BDE
oklch(55.7% 0.192 283)
-
Step 700
700 (this color)
#5E51C9
oklch(51.5% 0.179 283)
-
Step 800
800
#473D9C
oklch(42.7% 0.149 282.8)
-
Step 900
900
#3B357C
oklch(37.6% 0.116 283.1)
-
Step 950
950
#222049
oklch(27% 0.074 282.5)
#5E51C9 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) | #0067CD | 0.085 |
| Deuteranopia (no green cones) | #005FC7 | 0.081 |
| Tritanopia (no blue cones) | #306D85 | 0.152 |
| Achromatopsia (no color) | #636363 | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5E51C9
#5E51C9
oklch(51.5% 0.179 283)
- #736900
#736900
oklch(51.4% 0.108 102.9)
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 #5E51C9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.020
- Slate Blue #6A5ACD ΔE 0.030
- Bluey Purple #6241C7 ΔE 0.034
- Light Indigo #6D5ACF ΔE 0.034
- Dark Periwinkle #665FD1 ΔE 0.038
- Warm Blue #4B57DB ΔE 0.039
- Blue With A Hint Of Purple #533CC6 ΔE 0.050
- Blurple #5539CC ΔE 0.053
Use #5E51C9 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.