#91AAE3
Closest named color: Carolina Blue (#8AB8FE). oklch(74% 0.088 266), rgb(145, 170, 227).
Aa
Black text reads best on this color (9.06:1).
About this color
#91AAE3 is a medium-light, moderately saturated blue. In OKLCH its lightness is 74%, its chroma 0.088 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.046 away. Black text reads best on it, at 9.06:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.06:1 |
| White text | 2.31:1 |
Values
| HEX | #91AAE3 |
| RGB | rgb(145, 170, 227) |
| HSL | hsl(222, 59%, 73%) |
| OKLCH | oklch(74% 0.088 266) |
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 #91AAE3 | 2.31:1 | Fails | Lc -50.5 | Large or bold text, headings |
| Black text on #91AAE3 | 9.06:1 | AAA | Lc 58.3 | Large or bold text, headings |
| #91AAE3 text on white | 2.31:1 | Fails | Lc 45.7 | Large or bold text, headings |
| #91AAE3 text on black | 9.06:1 | AAA | Lc -56.4 | 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
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D0D9EE
oklch(88.5% 0.031 267.2)
-
Step 300
300
#B0C1E5
oklch(81% 0.054 265.2)
-
Step 400
400 (this color)
#91AAE3
oklch(74% 0.088 266)
-
Step 500
500
#6987CD
oklch(63.1% 0.111 265.7)
-
Step 600
600
#5170BA
oklch(55.6% 0.121 265.5)
-
Step 700
700
#425DA1
oklch(49.1% 0.114 266)
-
Step 800
800
#374C82
oklch(42.7% 0.094 266.5)
-
Step 900
900
#2F4068
oklch(37.7% 0.072 265.6)
-
Step 950
950
#1C263D
oklch(27.1% 0.045 265.6)
#91AAE3 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) | #97AEE6 | 0.014 |
| Deuteranopia (no green cones) | #8FA7E2 | 0.009 |
| Tritanopia (no blue cones) | #78B6BE | 0.079 |
| Achromatopsia (no color) | #AAAAAA | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91AAE3
#91AAE3
oklch(74% 0.088 266)
- #C4A769
#C4A769
oklch(74% 0.087 85.3)
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 #91AAE3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.046
- Light Grey Blue #9DBCD4 ΔE 0.063
- Periwinkle Blue #8F99FB ΔE 0.064
- Pastel Blue #A2BFFE ΔE 0.066
- Cool Steel #97A7B3 ΔE 0.069
- Light Cornflower Blue #98C1D9 ΔE 0.070
- Bluegrey #85A3B2 ΔE 0.074
- Bluey Grey #89A0B0 ΔE 0.075
Use #91AAE3 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.