#91C9EA
Closest named color: Sky Blue (#87CEEB). oklch(80.9% 0.074 234.8), rgb(145, 201, 234).
Aa
Black text reads best on this color (11.74:1).
About this color
#91C9EA is a light, moderately saturated blue. In OKLCH its lightness is 81%, its chroma 0.074 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.016 away. Black text reads best on it, at 11.74:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 11.74:1 |
| White text | 1.78:1 |
Values
| HEX | #91C9EA |
| RGB | rgb(145, 201, 234) |
| HSL | hsl(202, 68%, 74%) |
| OKLCH | oklch(80.9% 0.074 234.8) |
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 #91C9EA | 1.78:1 | Fails | Lc -37.0 | Non-text elements, placeholder text |
| Black text on #91C9EA | 11.74:1 | AAA | Lc 70.9 | Content text, not long reading |
| #91C9EA text on white | 1.78:1 | Fails | Lc 33.0 | Non-text elements, placeholder text |
| #91C9EA text on black | 11.74:1 | AAA | Lc -69.7 | 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
#EFF7FB
oklch(97.1% 0.01 228.9)
-
Step 100
100
#DDEDF6
oklch(93.7% 0.021 232.1)
-
Step 200
200
#C0DEF1
oklch(88.5% 0.041 235.7)
-
Step 300
300 (this color)
#91C9EA
oklch(80.9% 0.074 234.8)
-
Step 400
400
#48ACE0
oklch(70.7% 0.119 234.8)
-
Step 500
500
#0095CE
oklch(63.2% 0.133 234.7)
-
Step 600
600
#007DAE
oklch(55.7% 0.118 234.9)
-
Step 700
700
#006993
oklch(49.2% 0.104 234.9)
-
Step 800
800
#005679
oklch(42.8% 0.09 234.7)
-
Step 900
900
#004765
oklch(37.6% 0.08 234.9)
-
Step 950
950
#002A3E
oklch(26.9% 0.057 235.2)
#91C9EA 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) | #BAC7EC | 0.049 |
| Deuteranopia (no green cones) | #ADBDEA | 0.043 |
| Tritanopia (no blue cones) | #71D2D4 | 0.056 |
| Achromatopsia (no color) | #C2C2C2 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91C9EA
#91C9EA
oklch(80.9% 0.074 234.8)
- #E7B493
#E7B493
oklch(80.8% 0.074 54.3)
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 #91C9EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.016
- Light Sky Blue #87CEFA ΔE 0.023
- Light Cornflower Blue #98C1D9 ΔE 0.027
- Lightblue #7BC8F6 ΔE 0.028
- Sky #82CAFC ΔE 0.028
- Cloudy Blue #ACC2D9 ΔE 0.037
- Baby Blue #A2CFFE ΔE 0.037
- Light Steel Blue #B0C4DE ΔE 0.038
Use #91C9EA 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.