#91BFE5
Closest named color: Light Cornflower Blue (#98C1D9). oklch(78.5% 0.073 243.8), rgb(145, 191, 229).
Aa
Black text reads best on this color (10.78:1).
About this color
#91BFE5 is a light, moderately saturated blue. In OKLCH its lightness is 79%, its chroma 0.073 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Light Cornflower Blue (#98C1D9), ΔE 0.021 away. Black text reads best on it, at 10.78:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Light Cornflower Blue (#98C1D9) |
| Black text | 10.78:1 |
| White text | 1.94:1 |
Values
| HEX | #91BFE5 |
| RGB | rgb(145, 191, 229) |
| HSL | hsl(207, 62%, 73%) |
| OKLCH | oklch(78.5% 0.073 243.8) |
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 #91BFE5 | 1.94:1 | Fails | Lc -41.7 | Non-text elements, placeholder text |
| Black text on #91BFE5 | 10.78:1 | AAA | Lc 66.6 | Content text, not long reading |
| #91BFE5 text on white | 1.94:1 | Fails | Lc 37.3 | Non-text elements, placeholder text |
| #91BFE5 text on black | 10.78:1 | AAA | Lc -65.1 | 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
#DEECF7
oklch(93.6% 0.021 241.4)
-
Step 200
200
#C3DDF3
oklch(88.5% 0.041 243.7)
-
Step 300
300 (this color)
#91BFE5
oklch(78.5% 0.073 243.8)
-
Step 400
400
#5AA8E4
oklch(70.7% 0.117 243.8)
-
Step 500
500
#1591DC
oklch(63.2% 0.149 243.5)
-
Step 600
600
#0079BC
oklch(55.5% 0.136 243.9)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#005384
oklch(42.6% 0.106 244.3)
-
Step 900
900
#00456F
oklch(37.6% 0.093 244.3)
-
Step 950
950
#042942
oklch(27% 0.061 243.6)
#91BFE5 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) | #AFBFE7 | 0.037 |
| Deuteranopia (no green cones) | #A5B6E4 | 0.032 |
| Tritanopia (no blue cones) | #74C8CB | 0.060 |
| Achromatopsia (no color) | #BABABA | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91BFE5
#91BFE5
oklch(78.5% 0.073 243.8)
- #DBB088
#DBB088
oklch(78.6% 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 #91BFE5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Cornflower Blue #98C1D9 ΔE 0.021
- Light Grey Blue #9DBCD4 ΔE 0.026
- Lightblue #7BC8F6 ΔE 0.033
- Sky #82CAFC ΔE 0.038
- Cloudy Blue #ACC2D9 ΔE 0.038
- Sky Blue #87CEEB ΔE 0.039
- Light Sky Blue #87CEFA ΔE 0.042
- Light Steel Blue #B0C4DE ΔE 0.043
Use #91BFE5 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.