#91B2FF
Closest named color: Carolina Blue (#8AB8FE). oklch(76.9% 0.117 266), rgb(145, 178, 255).
Aa
Black text reads best on this color (10.01:1).
About this color
#91B2FF is a medium-light, moderately saturated blue. In OKLCH its lightness is 77%, its chroma 0.117 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.017 away. Black text reads best on it, at 10.01:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 10.01:1 |
| White text | 2.09:1 |
Values
| HEX | #91B2FF |
| RGB | rgb(145, 178, 255) |
| HSL | hsl(222, 100%, 78%) |
| OKLCH | oklch(76.9% 0.117 266) |
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 #91B2FF | 2.09:1 | Fails | Lc -45.6 | Large or bold text, headings |
| Black text on #91B2FF | 10.01:1 | AAA | Lc 63.0 | Content text, not long reading |
| #91B2FF text on white | 2.09:1 | Fails | Lc 40.9 | Non-text elements, placeholder text |
| #91B2FF text on black | 10.01:1 | AAA | Lc -61.3 | Content text, not long reading |
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 300.
-
Step 50
50
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E0EAFF
oklch(93.6% 0.03 265.3)
-
Step 200
200
#C8D9FF
oklch(88.5% 0.056 266.2)
-
Step 300
300 (this color)
#91B2FF
oklch(76.9% 0.117 266)
-
Step 400
400
#749CFF
oklch(70.8% 0.152 266)
-
Step 500
500
#507FFF
oklch(63.1% 0.197 265.8)
-
Step 600
600
#305DFF
oklch(55.6% 0.244 266.1)
-
Step 700
700
#2147E6
oklch(49.1% 0.241 266)
-
Step 800
800
#1C3CBA
oklch(42.7% 0.2 266.1)
-
Step 900
900
#1A3692
oklch(37.6% 0.155 265.9)
-
Step 950
950
#0F2156
oklch(27% 0.099 265.7)
#91B2FF 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) | #96B8FF | 0.018 |
| Deuteranopia (no green cones) | #8BAFFD | 0.011 |
| Tritanopia (no blue cones) | #69C2CD | 0.105 |
| Achromatopsia (no color) | #B3B3B3 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B2FF
#91B2FF
oklch(76.9% 0.117 266)
- #D5AE55
#D5AE55
oklch(76.8% 0.117 85.7)
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 #91B2FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.017
- Pastel Blue #A2BFFE ΔE 0.043
- Periwinkle Blue #8F99FB ΔE 0.064
- Sky #82CAFC ΔE 0.066
- Lightblue #7BC8F6 ΔE 0.066
- Light Grey Blue #9DBCD4 ΔE 0.076
- Light Sky Blue #87CEFA ΔE 0.077
- Light Cornflower Blue #98C1D9 ΔE 0.078
Use #91B2FF 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.