#91CBF0
Closest named color: Light Sky Blue (#87CEFA). oklch(81.5% 0.079 237), rgb(145, 203, 240).
Aa
Black text reads best on this color (12.00:1).
About this color
#91CBF0 is a light, moderately saturated blue. In OKLCH its lightness is 82%, its chroma 0.079 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sky Blue (#87CEFA), ΔE 0.016 away. Black text reads best on it, at 12.00:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Light Sky Blue (#87CEFA) |
| Black text | 12.00:1 |
| White text | 1.74:1 |
Values
| HEX | #91CBF0 |
| RGB | rgb(145, 203, 240) |
| HSL | hsl(203, 76%, 75%) |
| OKLCH | oklch(81.5% 0.079 237) |
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 #91CBF0 | 1.74:1 | Fails | Lc -35.8 | Non-text elements, placeholder text |
| Black text on #91CBF0 | 12.00:1 | AAA | Lc 72.0 | Content text, not long reading |
| #91CBF0 text on white | 1.74:1 | Fails | Lc 31.8 | Non-text elements, placeholder text |
| #91CBF0 text on black | 12.00:1 | AAA | Lc -70.9 | 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
#EFF7FC
oklch(97.2% 0.011 234.8)
-
Step 100
100
#DCEDF8
oklch(93.7% 0.023 236)
-
Step 200
200
#BFDEF3
oklch(88.5% 0.044 237.6)
-
Step 300
300 (this color)
#91CBF0
oklch(81.5% 0.079 237)
-
Step 400
400
#43ABE5
oklch(70.6% 0.127 237.1)
-
Step 500
500
#0094D2
oklch(63.2% 0.138 237.1)
-
Step 600
600
#007CB1
oklch(55.6% 0.122 237.2)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#00557B
oklch(42.6% 0.093 237.2)
-
Step 900
900
#004767
oklch(37.7% 0.082 236.6)
-
Step 950
950
#002A3F
oklch(27% 0.059 236.5)
#91CBF0 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) | #BACAF2 | 0.049 |
| Deuteranopia (no green cones) | #ADBFEF | 0.043 |
| Tritanopia (no blue cones) | #6DD5D7 | 0.062 |
| Achromatopsia (no color) | #C4C4C4 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91CBF0
#91CBF0
oklch(81.5% 0.079 237)
- #EBB690
#EBB690
oklch(81.5% 0.08 57)
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 #91CBF0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sky Blue #87CEFA ΔE 0.016
- Sky Blue #87CEEB ΔE 0.016
- Sky #82CAFC ΔE 0.023
- Lightblue #7BC8F6 ΔE 0.026
- Baby Blue #A2CFFE ΔE 0.030
- Light Cornflower Blue #98C1D9 ΔE 0.035
- Light Steel Blue #B0C4DE ΔE 0.041
- Cloudy Blue #ACC2D9 ΔE 0.042
Use #91CBF0 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.