#91B4E5
Closest named color: Carolina Blue (#8AB8FE). oklch(76.2% 0.081 256.8), rgb(145, 180, 229).
Aa
Black text reads best on this color (9.86:1).
About this color
#91B4E5 is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.081 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.035 away. Black text reads best on it, at 9.86:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.86:1 |
| White text | 2.12:1 |
Values
| HEX | #91B4E5 |
| RGB | rgb(145, 180, 229) |
| HSL | hsl(215, 62%, 73%) |
| OKLCH | oklch(76.2% 0.081 256.8) |
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 #91B4E5 | 2.12:1 | Fails | Lc -46.4 | Large or bold text, headings |
| Black text on #91B4E5 | 9.86:1 | AAA | Lc 62.2 | Content text, not long reading |
| #91B4E5 text on white | 2.12:1 | Fails | Lc 41.7 | Non-text elements, placeholder text |
| #91B4E5 text on black | 9.86:1 | AAA | Lc -60.5 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C7DBF7
oklch(88.5% 0.044 256.8)
-
Step 300
300 (this color)
#91B4E5
oklch(76.2% 0.081 256.8)
-
Step 400
400
#6AA2F0
oklch(70.7% 0.129 256.9)
-
Step 500
500
#4088EB
oklch(63% 0.166 257.1)
-
Step 600
600
#1B70D9
oklch(55.7% 0.179 256.8)
-
Step 700
700
#0B5DBC
oklch(49.1% 0.166 256.8)
-
Step 800
800
#0F4C98
oklch(42.6% 0.138 257)
-
Step 900
900
#164079
oklch(37.6% 0.108 257.2)
-
Step 950
950
#0E2647
oklch(27% 0.068 257.1)
#91B4E5 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) | #A2B6E7 | 0.023 |
| Deuteranopia (no green cones) | #99AEE4 | 0.017 |
| Tritanopia (no blue cones) | #76BFC4 | 0.072 |
| Achromatopsia (no color) | #B2B2B2 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B4E5
#91B4E5
oklch(76.2% 0.081 256.8)
- #CFAB77
#CFAB77
oklch(76.1% 0.08 76.2)
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 #91B4E5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.035
- Light Grey Blue #9DBCD4 ΔE 0.041
- Light Cornflower Blue #98C1D9 ΔE 0.046
- Pastel Blue #A2BFFE ΔE 0.048
- Lightblue #7BC8F6 ΔE 0.054
- Sky #82CAFC ΔE 0.059
- Cloudy Blue #ACC2D9 ΔE 0.059
- Light Steel Blue #B0C4DE ΔE 0.064
Use #91B4E5 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.