#8B91C4
Closest named color: Cool Gray (#8D99AE). oklch(67.1% 0.076 278.9), rgb(139, 145, 196).
Aa
Black text reads best on this color (6.94:1).
About this color
#8B91C4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.076 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.046 away. Black text reads best on it, at 6.94:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 6.94:1 |
| White text | 3.02:1 |
Values
| HEX | #8B91C4 |
| RGB | rgb(139, 145, 196) |
| HSL | hsl(234, 33%, 66%) |
| OKLCH | oklch(67.1% 0.076 278.9) |
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 #8B91C4 | 3.02:1 | AA large text | Lc -62.3 | Content text, not long reading |
| Black text on #8B91C4 | 6.94:1 | AA | Lc 47.1 | Large or bold text, headings |
| #8B91C4 text on white | 3.02:1 | AA large text | Lc 57.0 | Large or bold text, headings |
| #8B91C4 text on black | 6.94:1 | AA | Lc -44.8 | 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
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D5D8EB
oklch(88.6% 0.026 278.7)
-
Step 300
300
#B9BEE0
oklch(80.9% 0.048 278.7)
-
Step 400
400 (this color)
#8B91C4
oklch(67.1% 0.076 278.9)
-
Step 500
500
#7D83C3
oklch(63.1% 0.096 279.1)
-
Step 600
600
#666CB0
oklch(55.6% 0.105 278.6)
-
Step 700
700
#555A97
oklch(49.1% 0.097 278.6)
-
Step 800
800
#464A7B
oklch(42.9% 0.081 278.9)
-
Step 900
900
#3A3E63
oklch(37.8% 0.063 278.2)
-
Step 950
950
#22243A
oklch(26.9% 0.041 279.3)
#8B91C4 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) | #8296C6 | 0.017 |
| Deuteranopia (no green cones) | #7F92C3 | 0.016 |
| Tritanopia (no blue cones) | #7D9AA3 | 0.066 |
| Achromatopsia (no color) | #949494 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8B91C4
#8B91C4
oklch(67.1% 0.076 278.9)
- #A1975F
#A1975F
oklch(67.2% 0.076 99.4)
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 #8B91C4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.046
- Silver Lake Blue #778DA9 ΔE 0.051
- Heather #A484AC ΔE 0.052
- Faded Blue #658CBB ΔE 0.054
- Perrywinkle #8F8CE7 ΔE 0.058
- Bluey Grey #89A0B0 ΔE 0.059
- Blue Grey #758DA3 ΔE 0.060
- Greyblue #77A1B5 ΔE 0.060
Use #8B91C4 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.