#91BEE5
Closest named color: Light Cornflower Blue (#98C1D9). oklch(78.3% 0.074 245.1), rgb(145, 190, 229).
Aa
Black text reads best on this color (10.70:1).
About this color
#91BEE5 is a light, moderately saturated blue. In OKLCH its lightness is 78%, its chroma 0.074 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Light Cornflower Blue (#98C1D9), ΔE 0.023 away. Black text reads best on it, at 10.70:1.
| Hue family | Blues |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Light Cornflower Blue (#98C1D9) |
| Black text | 10.70:1 |
| White text | 1.96:1 |
Values
| HEX | #91BEE5 |
| RGB | rgb(145, 190, 229) |
| HSL | hsl(208, 62%, 73%) |
| OKLCH | oklch(78.3% 0.074 245.1) |
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 #91BEE5 | 1.96:1 | Fails | Lc -42.1 | Non-text elements, placeholder text |
| Black text on #91BEE5 | 10.70:1 | AAA | Lc 66.2 | Content text, not long reading |
| #91BEE5 text on white | 1.96:1 | Fails | Lc 37.7 | Non-text elements, placeholder text |
| #91BEE5 text on black | 10.70:1 | AAA | Lc -64.7 | 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
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DFECF8
oklch(93.7% 0.021 245.9)
-
Step 200
200
#C4DDF3
oklch(88.6% 0.04 244.8)
-
Step 300
300 (this color)
#91BEE5
oklch(78.3% 0.074 245.1)
-
Step 400
400
#5CA8E5
oklch(70.8% 0.117 244.8)
-
Step 500
500
#1C90DD
oklch(63.1% 0.15 244.9)
-
Step 600
600
#0079BF
oklch(55.7% 0.14 245)
-
Step 700
700
#0065A2
oklch(49% 0.125 245.5)
-
Step 800
800
#005385
oklch(42.7% 0.107 244.8)
-
Step 900
900
#004570
oklch(37.7% 0.095 244.9)
-
Step 950
950
#052942
oklch(27.1% 0.061 244.2)
#91BEE5 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) | #AEBEE7 | 0.036 |
| Deuteranopia (no green cones) | #A3B5E4 | 0.030 |
| Tritanopia (no blue cones) | #74C7CB | 0.060 |
| Achromatopsia (no color) | #B9B9B9 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91BEE5
#91BEE5
oklch(78.3% 0.074 245.1)
- #DAAF87
#DAAF87
oklch(78.3% 0.073 64.4)
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 #91BEE5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Cornflower Blue #98C1D9 ΔE 0.023
- Light Grey Blue #9DBCD4 ΔE 0.026
- Lightblue #7BC8F6 ΔE 0.034
- Sky #82CAFC ΔE 0.039
- Cloudy Blue #ACC2D9 ΔE 0.040
- Sky Blue #87CEEB ΔE 0.042
- Pastel Blue #A2BFFE ΔE 0.043
- Light Steel Blue #B0C4DE ΔE 0.044
Use #91BEE5 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.