#91AFEB
Closest named color: Carolina Blue (#8AB8FE). oklch(75.4% 0.093 263.8), rgb(145, 175, 235).
Aa
Black text reads best on this color (9.53:1).
About this color
#91AFEB is a medium-light, moderately saturated blue. In OKLCH its lightness is 75%, its chroma 0.093 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.031 away. Black text reads best on it, at 9.53:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.53:1 |
| White text | 2.20:1 |
Values
| HEX | #91AFEB |
| RGB | rgb(145, 175, 235) |
| HSL | hsl(220, 69%, 75%) |
| OKLCH | oklch(75.4% 0.093 263.8) |
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 #91AFEB | 2.20:1 | Fails | Lc -48.1 | Large or bold text, headings |
| Black text on #91AFEB | 9.53:1 | AAA | Lc 60.7 | Content text, not long reading |
| #91AFEB text on white | 2.20:1 | Fails | Lc 43.3 | Non-text elements, placeholder text |
| #91AFEB text on black | 9.53:1 | AAA | Lc -58.9 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CEDAEF
oklch(88.6% 0.032 261.7)
-
Step 300
300
#AEC1E7
oklch(80.9% 0.058 264.2)
-
Step 400
400 (this color)
#91AFEB
oklch(75.4% 0.093 263.8)
-
Step 500
500
#6488D1
oklch(63.2% 0.118 263.4)
-
Step 600
600
#4B70BF
oklch(55.6% 0.13 263.8)
-
Step 700
700
#3C5DA4
oklch(49% 0.12 263.8)
-
Step 800
800
#324D85
oklch(42.8% 0.099 263.4)
-
Step 900
900
#2C406B
oklch(37.7% 0.078 264.1)
-
Step 950
950
#1A263E
oklch(27% 0.048 263.3)
#91AFEB 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) | #9AB3EE | 0.016 |
| Deuteranopia (no green cones) | #91ABEA | 0.010 |
| Tritanopia (no blue cones) | #74BBC4 | 0.082 |
| Achromatopsia (no color) | #AFAFAF | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91AFEB
#91AFEB
oklch(75.4% 0.093 263.8)
- #CBAA68
#CBAA68
oklch(75.3% 0.093 83.7)
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 #91AFEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.031
- Pastel Blue #A2BFFE ΔE 0.052
- Light Grey Blue #9DBCD4 ΔE 0.058
- Light Cornflower Blue #98C1D9 ΔE 0.063
- Lightblue #7BC8F6 ΔE 0.066
- Periwinkle Blue #8F99FB ΔE 0.068
- Sky #82CAFC ΔE 0.069
- Cloudy Blue #ACC2D9 ΔE 0.075
Use #91AFEB 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.