#8591EB
Closest named color: Perrywinkle (#8F8CE7). oklch(68.5% 0.133 276.5), rgb(133, 145, 235).
Aa
Black text reads best on this color (7.24:1).
About this color
#8591EB is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.133 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Perrywinkle (#8F8CE7), ΔE 0.017 away. Black text reads best on it, at 7.24:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Perrywinkle (#8F8CE7) |
| Black text | 7.24:1 |
| White text | 2.89:1 |
Values
| HEX | #8591EB |
| RGB | rgb(133, 145, 235) |
| HSL | hsl(233, 72%, 72%) |
| OKLCH | oklch(68.5% 0.133 276.5) |
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 #8591EB | 2.89:1 | Fails | Lc -60.5 | Content text, not long reading |
| Black text on #8591EB | 7.24:1 | AAA | Lc 48.9 | Large or bold text, headings |
| #8591EB text on white | 2.89:1 | Fails | Lc 55.2 | Large or bold text, headings |
| #8591EB text on black | 7.24:1 | AAA | Lc -46.6 | Large or bold text, headings |
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 400.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D1D7F8
oklch(88.5% 0.046 277.3)
-
Step 300
300
#B2BCF7
oklch(80.8% 0.084 276.9)
-
Step 400
400 (this color)
#8591EB
oklch(68.5% 0.133 276.5)
-
Step 500
500
#717BEE
oklch(63.1% 0.17 276.6)
-
Step 600
600
#5B61DC
oklch(55.6% 0.184 276.5)
-
Step 700
700
#4C4FBF
oklch(49.1% 0.172 276.8)
-
Step 800
800
#3E429B
oklch(42.8% 0.142 276.6)
-
Step 900
900
#34397B
oklch(37.8% 0.11 276.5)
-
Step 950
950
#1E2248
oklch(27% 0.07 276.2)
#8591EB 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) | #709CEF | 0.035 |
| Deuteranopia (no green cones) | #6994E9 | 0.034 |
| Tritanopia (no blue cones) | #63A3B3 | 0.117 |
| Achromatopsia (no color) | #989898 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8591EB
#8591EB
oklch(68.5% 0.133 276.5)
- #B2991F
#B2991F
oklch(68.6% 0.133 96.5)
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 #8591EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Perrywinkle #8F8CE7 ΔE 0.017
- Periwinkle Blue #8F99FB ΔE 0.033
- Lavender Blue #8B88F8 ΔE 0.033
- Cornflower Blue #6495ED ΔE 0.039
- Soft Blue #6488EA ΔE 0.050
- Periwinkle #8E82FE ΔE 0.051
- Chefchaouen Blue #4895EF ΔE 0.064
- Dark Sky Blue #448EE4 ΔE 0.073
Use #8591EB 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.