#91C8EA
Closest named color: Sky Blue (#87CEEB). oklch(80.7% 0.075 236.1), rgb(145, 200, 234).
Aa
Black text reads best on this color (11.65:1).
About this color
#91C8EA is a light, moderately saturated blue. In OKLCH its lightness is 81%, its chroma 0.075 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.018 away. Black text reads best on it, at 11.65:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 11.65:1 |
| White text | 1.80:1 |
Values
| HEX | #91C8EA |
| RGB | rgb(145, 200, 234) |
| HSL | hsl(203, 68%, 74%) |
| OKLCH | oklch(80.7% 0.075 236.1) |
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 #91C8EA | 1.80:1 | Fails | Lc -37.4 | Non-text elements, placeholder text |
| Black text on #91C8EA | 11.65:1 | AAA | Lc 70.5 | Content text, not long reading |
| #91C8EA text on white | 1.80:1 | Fails | Lc 33.4 | Non-text elements, placeholder text |
| #91C8EA text on black | 11.65:1 | AAA | Lc -69.2 | 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
#DDEDF7
oklch(93.7% 0.022 235)
-
Step 200
200
#C0DEF1
oklch(88.5% 0.041 235.7)
-
Step 300
300 (this color)
#91C8EA
oklch(80.7% 0.075 236.1)
-
Step 400
400
#4AABE1
oklch(70.6% 0.12 236.4)
-
Step 500
500
#0094D0
oklch(63.1% 0.136 236.2)
-
Step 600
600
#007CAF
oklch(55.5% 0.12 236.1)
-
Step 700
700
#006994
oklch(49.2% 0.105 235.5)
-
Step 800
800
#00567A
oklch(42.8% 0.091 235.4)
-
Step 900
900
#004767
oklch(37.7% 0.082 236.6)
-
Step 950
950
#002A3F
oklch(27% 0.059 236.5)
#91C8EA 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) | #B9C7EC | 0.048 |
| Deuteranopia (no green cones) | #ACBDE9 | 0.040 |
| Tritanopia (no blue cones) | #71D1D3 | 0.057 |
| Achromatopsia (no color) | #C1C1C1 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91C8EA
#91C8EA
oklch(80.7% 0.075 236.1)
- #E6B491
#E6B491
oklch(80.7% 0.075 56.4)
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 #91C8EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.018
- Light Sky Blue #87CEFA ΔE 0.024
- Light Cornflower Blue #98C1D9 ΔE 0.026
- Lightblue #7BC8F6 ΔE 0.027
- Sky #82CAFC ΔE 0.027
- Cloudy Blue #ACC2D9 ΔE 0.037
- Light Steel Blue #B0C4DE ΔE 0.038
- Light Grey Blue #9DBCD4 ΔE 0.038
Use #91C8EA 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.