#91B1FA
Closest named color: Carolina Blue (#8AB8FE). oklch(76.5% 0.111 265.7), rgb(145, 177, 250).
Aa
Black text reads best on this color (9.87:1).
About this color
#91B1FA is a medium-light, moderately saturated blue. In OKLCH its lightness is 77%, its chroma 0.111 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.018 away. Black text reads best on it, at 9.87:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.87:1 |
| White text | 2.12:1 |
Values
| HEX | #91B1FA |
| RGB | rgb(145, 177, 250) |
| HSL | hsl(222, 91%, 77%) |
| OKLCH | oklch(76.5% 0.111 265.7) |
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 #91B1FA | 2.12:1 | Fails | Lc -46.3 | Large or bold text, headings |
| Black text on #91B1FA | 9.87:1 | AAA | Lc 62.3 | Content text, not long reading |
| #91B1FA text on white | 2.12:1 | Fails | Lc 41.6 | Non-text elements, placeholder text |
| #91B1FA text on black | 9.87:1 | AAA | Lc -60.6 | 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)
#91B1FA
oklch(76.5% 0.111 265.7)
-
Step 400
400
#739CFF
oklch(70.7% 0.152 265.7)
-
Step 500
500
#507FFF
oklch(63.1% 0.197 265.8)
-
Step 600
600
#2E5EFF
oklch(55.7% 0.244 265.6)
-
Step 700
700
#224BE0
oklch(49.2% 0.229 265.7)
-
Step 800
800
#1D3FB5
oklch(42.8% 0.19 265.8)
-
Step 900
900
#1B388F
oklch(37.8% 0.148 265.5)
-
Step 950
950
#102253
oklch(27% 0.093 265.4)
#91B1FA 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) | #97B7FD | 0.018 |
| Deuteranopia (no green cones) | #8DADF8 | 0.012 |
| Tritanopia (no blue cones) | #6CC0CB | 0.099 |
| Achromatopsia (no color) | #B2B2B2 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B1FA
#91B1FA
oklch(76.5% 0.111 265.7)
- #D2AD5A
#D2AD5A
oklch(76.4% 0.111 85.6)
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 #91B1FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.018
- Pastel Blue #A2BFFE ΔE 0.044
- Periwinkle Blue #8F99FB ΔE 0.064
- Lightblue #7BC8F6 ΔE 0.065
- Sky #82CAFC ΔE 0.066
- Light Grey Blue #9DBCD4 ΔE 0.072
- Light Cornflower Blue #98C1D9 ΔE 0.074
- Light Sky Blue #87CEFA ΔE 0.077
Use #91B1FA 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.