#91F5FF
Closest named color: Robin Egg Blue (#8AF1FE). oklch(91.2% 0.095 203.9), rgb(145, 245, 255).
Aa
Black text reads best on this color (16.70:1).
About this color
#91F5FF is a very light, moderately saturated teal or cyan. In OKLCH its lightness is 91%, its chroma 0.095 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Robin Egg Blue (#8AF1FE), ΔE 0.013 away. Black text reads best on it, at 16.70:1.
| Hue family | Teals and cyans |
| Lightness | very light (91%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Robin Egg Blue (#8AF1FE) |
| Black text | 16.70:1 |
| White text | 1.25:1 |
Values
| HEX | #91F5FF |
| RGB | rgb(145, 245, 255) |
| HSL | hsl(185, 100%, 78%) |
| OKLCH | oklch(91.2% 0.095 203.9) |
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 #91F5FF | 1.25:1 | Fails | Lc -14.6 | Not readable |
| Black text on #91F5FF | 16.70:1 | AAA | Lc 91.0 | Preferred for body text |
| #91F5FF text on white | 1.25:1 | Fails | Lc 12.6 | Not readable |
| #91F5FF text on black | 16.70:1 | AAA | Lc -91.4 | Preferred 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 100.
-
Step 50
50
#EAF9FA
oklch(97.1% 0.016 201.7)
-
Step 100
100 (this color)
#91F5FF
oklch(91.2% 0.095 203.9)
-
Step 200
200
#A4E7EE
oklch(88.6% 0.068 204.2)
-
Step 300
300
#44D7E5
oklch(80.9% 0.122 204.4)
-
Step 400
400
#00B6C3
oklch(70.8% 0.121 203.9)
-
Step 500
500
#009CA7
oklch(63.1% 0.108 203.6)
-
Step 600
600
#00838D
oklch(55.6% 0.095 204.2)
-
Step 700
700
#006E76
oklch(49.1% 0.084 203.6)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#91F5FF 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) | #E7EDFF | 0.095 |
| Deuteranopia (no green cones) | #D5DFFF | 0.089 |
| Tritanopia (no blue cones) | #5CFCF8 | 0.043 |
| Achromatopsia (no color) | #E5E5E5 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91F5FF
#91F5FF
oklch(91.2% 0.095 203.9)
- #FFD7D4
#FFD7D4
oklch(91.2% 0.045 23.1)
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 #91F5FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin Egg Blue #8AF1FE ΔE 0.013
- Robin's Egg Blue #98EFF9 ΔE 0.016
- Pale Turquoise #AFEEEE ΔE 0.034
- Robin's Egg #6DEDFD ΔE 0.038
- Diamond #B9F2FF ΔE 0.039
- Pale Sky Blue #BDF6FE ΔE 0.044
- Pale Cyan #B7FFFA ΔE 0.049
- Bright Cyan #41FDFE ΔE 0.051
Use #91F5FF 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.