#91B1FC
Closest named color: Carolina Blue (#8AB8FE). oklch(76.6% 0.114 266.1), rgb(145, 177, 252).
Aa
Black text reads best on this color (9.89:1).
About this color
#91B1FC is a medium-light, moderately saturated blue. In OKLCH its lightness is 77%, its chroma 0.114 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.019 away. Black text reads best on it, at 9.89:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.89:1 |
| White text | 2.12:1 |
Values
| HEX | #91B1FC |
| RGB | rgb(145, 177, 252) |
| HSL | hsl(222, 95%, 78%) |
| OKLCH | oklch(76.6% 0.114 266.1) |
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 #91B1FC | 2.12:1 | Fails | Lc -46.2 | Large or bold text, headings |
| Black text on #91B1FC | 9.89:1 | AAA | Lc 62.4 | Content text, not long reading |
| #91B1FC text on white | 2.12:1 | Fails | Lc 41.5 | Non-text elements, placeholder text |
| #91B1FC text on black | 9.89:1 | AAA | Lc -60.7 | 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)
#91B1FC
oklch(76.6% 0.114 266.1)
-
Step 400
400
#749CFF
oklch(70.8% 0.152 266)
-
Step 500
500
#517FFF
oklch(63.2% 0.197 266)
-
Step 600
600
#305DFF
oklch(55.6% 0.244 266.1)
-
Step 700
700
#2349E3
oklch(49.2% 0.235 266.1)
-
Step 800
800
#1D3DB7
oklch(42.6% 0.195 266.1)
-
Step 900
900
#1B3791
oklch(37.8% 0.152 265.9)
-
Step 950
950
#102155
oklch(27% 0.097 266.2)
#91B1FC 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) | #96B7FF | 0.017 |
| Deuteranopia (no green cones) | #8CAEFA | 0.011 |
| Tritanopia (no blue cones) | #6BC1CC | 0.102 |
| Achromatopsia (no color) | #B2B2B2 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B1FC
#91B1FC
oklch(76.6% 0.114 266.1)
- #D3AE57
#D3AE57
oklch(76.7% 0.114 86.4)
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 #91B1FC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.019
- Pastel Blue #A2BFFE ΔE 0.044
- Periwinkle Blue #8F99FB ΔE 0.063
- Lightblue #7BC8F6 ΔE 0.066
- Sky #82CAFC ΔE 0.067
- Light Grey Blue #9DBCD4 ΔE 0.074
- Light Cornflower Blue #98C1D9 ΔE 0.077
- Light Sky Blue #87CEFA ΔE 0.078
Use #91B1FC 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.