#8591CB
Closest named color: Perrywinkle (#8F8CE7). oklch(67% 0.087 274.8), rgb(133, 145, 203).
Aa
Black text reads best on this color (6.90:1).
About this color
#8591CB is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.087 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Perrywinkle (#8F8CE7), ΔE 0.050 away. Black text reads best on it, at 6.90:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Perrywinkle (#8F8CE7) |
| Black text | 6.90:1 |
| White text | 3.03:1 |
Values
| HEX | #8591CB |
| RGB | rgb(133, 145, 203) |
| HSL | hsl(230, 40%, 66%) |
| OKLCH | oklch(67% 0.087 274.8) |
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 #8591CB | 3.03:1 | AA large text | Lc -62.5 | Content text, not long reading |
| Black text on #8591CB | 6.90:1 | AA | Lc 46.9 | Large or bold text, headings |
| #8591CB text on white | 3.03:1 | AA large text | Lc 57.2 | Large or bold text, headings |
| #8591CB text on black | 6.90:1 | AA | Lc -44.6 | Non-text elements, placeholder text |
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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D3D8EE
oklch(88.5% 0.031 275.6)
-
Step 300
300
#B6BFE5
oklch(81% 0.055 274.7)
-
Step 400
400 (this color)
#8591CB
oklch(67% 0.087 274.8)
-
Step 500
500
#7683CD
oklch(63.1% 0.112 275.1)
-
Step 600
600
#5F6CB9
oklch(55.6% 0.12 274.6)
-
Step 700
700
#4F5AA0
oklch(49.2% 0.112 274.8)
-
Step 800
800
#404982
oklch(42.6% 0.095 274.9)
-
Step 900
900
#363E68
oklch(37.7% 0.073 274.2)
-
Step 950
950
#20243D
oklch(26.9% 0.047 275.9)
#8591CB 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) | #7F97CD | 0.017 |
| Deuteranopia (no green cones) | #7A91CA | 0.015 |
| Tritanopia (no blue cones) | #719CA5 | 0.078 |
| Achromatopsia (no color) | #949494 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8591CB
#8591CB
oklch(67% 0.087 274.8)
- #A69554
#A69554
oklch(67% 0.088 95.1)
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 #8591CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Perrywinkle #8F8CE7 ΔE 0.050
- Faded Blue #658CBB ΔE 0.050
- Silver Lake Blue #778DA9 ΔE 0.055
- Cool Gray #8D99AE ΔE 0.056
- Cornflower Blue #6495ED ΔE 0.060
- Heather #A484AC ΔE 0.063
- Greyblue #77A1B5 ΔE 0.065
- Blue Grey #758DA3 ΔE 0.065
Use #8591CB 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.