#91AEF5
Closest named color: Carolina Blue (#8AB8FE). oklch(75.7% 0.108 266.8), rgb(145, 174, 245).
Aa
Black text reads best on this color (9.57:1).
About this color
#91AEF5 is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.108 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.026 away. Black text reads best on it, at 9.57:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.57:1 |
| White text | 2.19:1 |
Values
| HEX | #91AEF5 |
| RGB | rgb(145, 174, 245) |
| HSL | hsl(223, 83%, 76%) |
| OKLCH | oklch(75.7% 0.108 266.8) |
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 #91AEF5 | 2.19:1 | Fails | Lc -47.8 | Large or bold text, headings |
| Black text on #91AEF5 | 9.57:1 | AAA | Lc 60.9 | Content text, not long reading |
| #91AEF5 text on white | 2.19:1 | Fails | Lc 43.1 | Non-text elements, placeholder text |
| #91AEF5 text on black | 9.57:1 | AAA | Lc -59.1 | Large or bold text, headings |
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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CED9F3
oklch(88.5% 0.038 267.3)
-
Step 300
300
#ADC0ED
oklch(80.9% 0.067 267)
-
Step 400
400 (this color)
#91AEF5
oklch(75.7% 0.108 266.8)
-
Step 500
500
#6385DC
oklch(63.1% 0.137 266.4)
-
Step 600
600
#4B6DCA
oklch(55.7% 0.149 266.5)
-
Step 700
700
#3D5AAF
oklch(49.1% 0.14 267)
-
Step 800
800
#324A8D
oklch(42.6% 0.115 266.7)
-
Step 900
900
#2C3E71
oklch(37.6% 0.09 267.3)
-
Step 950
950
#1A2542
oklch(27% 0.056 266.9)
#91AEF5 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) | #95B4F8 | 0.017 |
| Deuteranopia (no green cones) | #8BABF3 | 0.012 |
| Tritanopia (no blue cones) | #6FBDC7 | 0.097 |
| Achromatopsia (no color) | #AFAFAF | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91AEF5
#91AEF5
oklch(75.7% 0.108 266.8)
- #CEAB5B
#CEAB5B
oklch(75.6% 0.107 86.1)
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 #91AEF5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.026
- Pastel Blue #A2BFFE ΔE 0.051
- Periwinkle Blue #8F99FB ΔE 0.058
- Lightblue #7BC8F6 ΔE 0.070
- Light Grey Blue #9DBCD4 ΔE 0.071
- Sky #82CAFC ΔE 0.073
- Light Cornflower Blue #98C1D9 ΔE 0.076
- Light Sky Blue #87CEFA ΔE 0.084
Use #91AEF5 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.