#5755B0
Closest named color: Iris (#6258C4). oklch(49.9% 0.141 281), rgb(87, 85, 176).
Aa
White text reads best on this color (6.30:1).
About this color
#5755B0 is a medium-dark, vivid purple. In OKLCH its lightness is 50%, its chroma 0.141 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.036 away. White text reads best on it, at 6.30:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.33:1 |
| White text | 6.30:1 |
Values
| HEX | #5755B0 |
| RGB | rgb(87, 85, 176) |
| HSL | hsl(241, 37%, 51%) |
| OKLCH | oklch(49.9% 0.141 281) |
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 #5755B0 | 6.30:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #5755B0 | 3.33:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #5755B0 text on white | 6.30:1 | AA | Lc 81.2 | Fine for body text |
| #5755B0 text on black | 3.33:1 | AA large text | Lc -20.7 | 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
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D4D7F2
oklch(88.5% 0.037 280.6)
-
Step 300
300
#B8BCEC
oklch(80.8% 0.068 281)
-
Step 400
400
#9498E3
oklch(70.6% 0.109 280.9)
-
Step 500
500
#7C7DDB
oklch(63.1% 0.139 281.2)
-
Step 600
600
#6664C9
oklch(55.6% 0.152 281.1)
-
Step 700
700 (this color)
#5755B0
oklch(49.9% 0.141 281)
-
Step 800
800
#45448C
oklch(42.6% 0.116 280.9)
-
Step 900
900
#3A3A70
oklch(37.7% 0.091 281.1)
-
Step 950
950
#222242
oklch(27% 0.059 281.7)
#5755B0 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) | #2863B3 | 0.059 |
| Deuteranopia (no green cones) | #205DAE | 0.061 |
| Tritanopia (no blue cones) | #35697A | 0.122 |
| Achromatopsia (no color) | #606060 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5755B0
#5755B0
oklch(49.9% 0.141 281)
- #706400
#706400
oklch(49.9% 0.104 101.2)
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 #5755B0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.036
- Slate Blue #6A5ACD ΔE 0.055
- Bluey Purple #6241C7 ΔE 0.060
- Dusky Blue #475F94 ΔE 0.060
- Light Indigo #6D5ACF ΔE 0.061
- Dark Periwinkle #665FD1 ΔE 0.061
- Twilight #4E518B ΔE 0.061
- French Blue #436BAD ΔE 0.062
Use #5755B0 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.