#91DEF5
Closest named color: Light Blue (#ADD8E6). oklch(85.9% 0.082 218.7), rgb(145, 222, 245).
Aa
Black text reads best on this color (13.97:1).
About this color
#91DEF5 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 86%, its chroma 0.082 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.033 away. Black text reads best on it, at 13.97:1.
| Hue family | Teals and cyans |
| Lightness | light (86%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 13.97:1 |
| White text | 1.50:1 |
Values
| HEX | #91DEF5 |
| RGB | rgb(145, 222, 245) |
| HSL | hsl(194, 83%, 76%) |
| OKLCH | oklch(85.9% 0.082 218.7) |
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 #91DEF5 | 1.50:1 | Fails | Lc -26.6 | Dividers and decoration only |
| Black text on #91DEF5 | 13.97:1 | AAA | Lc 80.3 | Fine for body text |
| #91DEF5 text on white | 1.50:1 | Fails | Lc 23.4 | Dividers and decoration only |
| #91DEF5 text on black | 13.97:1 | AAA | Lc -79.8 | Fine for body text |
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 200.
-
Step 50
50
#ECF8FC
oklch(97.1% 0.014 219.6)
-
Step 100
100
#D4EFF8
oklch(93.5% 0.031 219.8)
-
Step 200
200 (this color)
#91DEF5
oklch(85.9% 0.082 218.7)
-
Step 300
300
#67D1EF
oklch(80.9% 0.106 218.9)
-
Step 400
400
#00B3D6
oklch(70.8% 0.128 218.5)
-
Step 500
500
#0099B8
oklch(63.1% 0.114 219)
-
Step 600
600
#00819B
oklch(55.7% 0.1 218.5)
-
Step 700
700
#006C82
oklch(49.1% 0.088 218.4)
-
Step 800
800
#00596B
oklch(42.8% 0.077 217.7)
-
Step 900
900
#004A5A
oklch(37.8% 0.068 218.5)
-
Step 950
950
#002C36
oklch(27% 0.048 217.4)
#91DEF5 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) | #CFD9F6 | 0.071 |
| Deuteranopia (no green cones) | #C0CDF5 | 0.066 |
| Tritanopia (no blue cones) | #67E6E5 | 0.050 |
| Achromatopsia (no color) | #D3D3D3 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91DEF5
#91DEF5
oklch(85.9% 0.082 218.7)
- #FFBFAB
#FFBFAB
oklch(85.8% 0.079 38.1)
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 #91DEF5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.033
- Celeste #A8DADC ΔE 0.038
- Powder Blue #B0E0E6 ΔE 0.039
- Robin's Egg #6DEDFD ΔE 0.044
- Sky Blue #87CEEB ΔE 0.045
- Robin's Egg Blue #98EFF9 ΔE 0.047
- Baby Blue #A2CFFE ΔE 0.048
- Light Sky Blue #87CEFA ΔE 0.049
Use #91DEF5 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.