#91CEE9
Closest named color: Sky Blue (#87CEEB). oklch(81.9% 0.073 227.4), rgb(145, 206, 233).
Aa
Black text reads best on this color (12.20:1).
About this color
#91CEE9 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 82%, its chroma 0.073 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.010 away. Black text reads best on it, at 12.20:1.
| Hue family | Teals and cyans |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 12.20:1 |
| White text | 1.72:1 |
Values
| HEX | #91CEE9 |
| RGB | rgb(145, 206, 233) |
| HSL | hsl(198, 67%, 74%) |
| OKLCH | oklch(81.9% 0.073 227.4) |
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 #91CEE9 | 1.72:1 | Fails | Lc -34.8 | Non-text elements, placeholder text |
| Black text on #91CEE9 | 12.20:1 | AAA | Lc 72.9 | Content text, not long reading |
| #91CEE9 text on white | 1.72:1 | Fails | Lc 30.9 | Non-text elements, placeholder text |
| #91CEE9 text on black | 12.20:1 | AAA | Lc -71.8 | 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
#DCEDF5
oklch(93.6% 0.021 227.5)
-
Step 200
200
#BEDFEE
oklch(88.4% 0.04 227)
-
Step 300
300 (this color)
#91CEE9
oklch(81.9% 0.073 227.4)
-
Step 400
400
#3EAED9
oklch(70.6% 0.117 227.8)
-
Step 500
500
#0097C3
oklch(63.1% 0.123 227.5)
-
Step 600
600
#007FA4
oklch(55.6% 0.108 227.1)
-
Step 700
700
#006B8A
oklch(49.2% 0.095 226.5)
-
Step 800
800
#005772
oklch(42.6% 0.083 227.6)
-
Step 900
900
#004960
oklch(37.8% 0.073 227.3)
-
Step 950
950
#002B3A
oklch(27% 0.052 227.2)
#91CEE9 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) | #C0CBEA | 0.056 |
| Deuteranopia (no green cones) | #B3C1E9 | 0.050 |
| Tritanopia (no blue cones) | #70D6D6 | 0.051 |
| Achromatopsia (no color) | #C5C5C5 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91CEE9
#91CEE9
oklch(81.9% 0.073 227.4)
- #ECB69C
#ECB69C
oklch(81.9% 0.072 46.9)
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 #91CEE9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.010
- Light Sky Blue #87CEFA ΔE 0.026
- Sky #82CAFC ΔE 0.035
- Light Cornflower Blue #98C1D9 ΔE 0.035
- Lightblue #7BC8F6 ΔE 0.036
- Baby Blue #A2CFFE ΔE 0.037
- Light Steel Blue #B0C4DE ΔE 0.041
- Cloudy Blue #ACC2D9 ΔE 0.041
Use #91CEE9 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.