#8B91C6
Closest named color: Cool Gray (#8D99AE). oklch(67.2% 0.079 279.1), rgb(139, 145, 198).
Aa
Black text reads best on this color (6.96:1).
About this color
#8B91C6 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.079 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.048 away. Black text reads best on it, at 6.96:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 6.96:1 |
| White text | 3.01:1 |
Values
| HEX | #8B91C6 |
| RGB | rgb(139, 145, 198) |
| HSL | hsl(234, 34%, 66%) |
| OKLCH | oklch(67.2% 0.079 279.1) |
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 #8B91C6 | 3.01:1 | AA large text | Lc -62.2 | Content text, not long reading |
| Black text on #8B91C6 | 6.96:1 | AA | Lc 47.2 | Large or bold text, headings |
| #8B91C6 text on white | 3.01:1 | AA large text | Lc 56.9 | Large or bold text, headings |
| #8B91C6 text on black | 6.96:1 | AA | Lc -44.9 | 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
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D5D8EC
oklch(88.6% 0.028 279)
-
Step 300
300
#B9BEE1
oklch(80.9% 0.05 278.8)
-
Step 400
400 (this color)
#8B91C6
oklch(67.2% 0.079 279.1)
-
Step 500
500
#7C83C6
oklch(63.2% 0.101 278.5)
-
Step 600
600
#666BB2
oklch(55.5% 0.11 279.1)
-
Step 700
700
#555999
oklch(49.1% 0.102 279.2)
-
Step 800
800
#45497C
oklch(42.6% 0.084 278.8)
-
Step 900
900
#3A3D64
oklch(37.6% 0.067 279.3)
-
Step 950
950
#22243A
oklch(26.9% 0.041 279.3)
#8B91C6 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) | #8297C8 | 0.019 |
| Deuteranopia (no green cones) | #7E92C5 | 0.018 |
| Tritanopia (no blue cones) | #7C9BA3 | 0.071 |
| Achromatopsia (no color) | #949494 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8B91C6
#8B91C6
oklch(67.2% 0.079 279.1)
- #A2975D
#A2975D
oklch(67.2% 0.079 98.8)
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 #8B91C6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.048
- Silver Lake Blue #778DA9 ΔE 0.053
- Heather #A484AC ΔE 0.054
- Faded Blue #658CBB ΔE 0.055
- Perrywinkle #8F8CE7 ΔE 0.055
- Bluey Grey #89A0B0 ΔE 0.061
- Greyblue #77A1B5 ΔE 0.062
- Blue Grey #758DA3 ΔE 0.062
Use #8B91C6 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.