#5751AF
Closest named color: Iris (#6258C4). oklch(49.1% 0.145 282.5), rgb(87, 81, 175).
Aa
White text reads best on this color (6.55:1).
About this color
#5751AF is a medium-dark, vivid purple. In OKLCH its lightness is 49%, its chroma 0.145 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.041 away. White text reads best on it, at 6.55:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.20:1 |
| White text | 6.55:1 |
Values
| HEX | #5751AF |
| RGB | rgb(87, 81, 175) |
| HSL | hsl(244, 37%, 50%) |
| OKLCH | oklch(49.1% 0.145 282.5) |
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 #5751AF | 6.55:1 | AA | Lc -87.3 | Fine for body text |
| Black text on #5751AF | 3.20:1 | AA large text | Lc 21.8 | Dividers and decoration only |
| #5751AF text on white | 6.55:1 | AA | Lc 82.2 | Fine for body text |
| #5751AF text on black | 3.20:1 | AA large text | Lc -19.7 | 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
#D5D7F3
oklch(88.6% 0.038 282.3)
-
Step 300
300
#B9BCED
oklch(81% 0.069 282)
-
Step 400
400
#9697E5
oklch(70.7% 0.113 282.5)
-
Step 500
500
#7E7CDD
oklch(63.2% 0.143 282.4)
-
Step 600
600
#6863CA
oklch(55.6% 0.155 282.3)
-
Step 700
700 (this color)
#5751AF
oklch(49.1% 0.145 282.5)
-
Step 800
800
#47438E
oklch(42.7% 0.12 282.4)
-
Step 900
900
#3B3971
oklch(37.6% 0.094 282.5)
-
Step 950
950
#222242
oklch(27% 0.059 281.7)
#5751AF 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) | #1E60B2 | 0.066 |
| Deuteranopia (no green cones) | #165AAD | 0.068 |
| Tritanopia (no blue cones) | #366678 | 0.124 |
| Achromatopsia (no color) | #5D5D5D | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5751AF
#5751AF
oklch(49.1% 0.145 282.5)
- #6C6200
#6C6200
oklch(49% 0.103 102.5)
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 #5751AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.041
- Bluey Purple #6241C7 ΔE 0.054
- Slate Blue #6A5ACD ΔE 0.060
- Twilight #4E518B ΔE 0.060
- Blue With A Hint Of Purple #533CC6 ΔE 0.061
- Blueberry #464196 ΔE 0.063
- Light Indigo #6D5ACF ΔE 0.065
- Dusky Blue #475F94 ΔE 0.065
Use #5751AF 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.