#5A51B6
Closest named color: Iris (#6258C4). oklch(49.8% 0.154 283.3), rgb(90, 81, 182).
Aa
White text reads best on this color (6.38:1).
About this color
#5A51B6 is a medium-dark, vivid purple. In OKLCH its lightness is 50%, its chroma 0.154 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.030 away. White text reads best on it, at 6.38:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.28:1 |
| White text | 6.38:1 |
Values
| HEX | #5A51B6 |
| RGB | rgb(90, 81, 182) |
| HSL | hsl(245, 41%, 52%) |
| OKLCH | oklch(49.8% 0.154 283.3) |
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 #5A51B6 | 6.38:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #5A51B6 | 3.28:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #5A51B6 text on white | 6.38:1 | AA | Lc 81.5 | Fine for body text |
| #5A51B6 text on black | 3.28:1 | AA large text | Lc -20.4 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E8F8
oklch(93.5% 0.022 283.1)
-
Step 200
200
#D5D6F4
oklch(88.5% 0.041 284)
-
Step 300
300
#B9BBF0
oklch(80.9% 0.075 282.9)
-
Step 400
400
#9796E9
oklch(70.7% 0.12 283.4)
-
Step 500
500
#7F7AE2
oklch(63.2% 0.153 283.3)
-
Step 600
600
#6960D0
oklch(55.5% 0.167 283.1)
-
Step 700
700 (this color)
#5A51B6
oklch(49.8% 0.154 283.3)
-
Step 800
800
#484191
oklch(42.6% 0.128 283.5)
-
Step 900
900
#3C3874
oklch(37.7% 0.1 283.5)
-
Step 950
950
#232144
oklch(27% 0.064 283.9)
#5A51B6 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) | #1362B9 | 0.075 |
| Deuteranopia (no green cones) | #065CB4 | 0.077 |
| Tritanopia (no blue cones) | #37687B | 0.133 |
| Achromatopsia (no color) | #5F5F5F | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A51B6
#5A51B6
oklch(49.8% 0.154 283.3)
- #6E6500
#6E6500
oklch(49.9% 0.105 103.4)
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 #5A51B6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.030
- Bluey Purple #6241C7 ΔE 0.045
- Slate Blue #6A5ACD ΔE 0.049
- Light Indigo #6D5ACF ΔE 0.054
- Blue With A Hint Of Purple #533CC6 ΔE 0.055
- Dark Periwinkle #665FD1 ΔE 0.056
- Warm Blue #4B57DB ΔE 0.061
- Blurple #5539CC ΔE 0.063
Use #5A51B6 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.