#91FDFF
Closest named color: Robin Egg Blue (#8AF1FE). oklch(93% 0.1 197.1), rgb(145, 253, 255).
Aa
Black text reads best on this color (17.69:1).
About this color
#91FDFF is a very light, moderately saturated teal or cyan. In OKLCH its lightness is 93%, its chroma 0.100 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Robin Egg Blue (#8AF1FE), ΔE 0.034 away. Black text reads best on it, at 17.69:1.
| Hue family | Teals and cyans |
| Lightness | very light (93%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Robin Egg Blue (#8AF1FE) |
| Black text | 17.69:1 |
| White text | 1.18:1 |
Values
| HEX | #91FDFF |
| RGB | rgb(145, 253, 255) |
| HSL | hsl(181, 100%, 78%) |
| OKLCH | oklch(93% 0.1 197.1) |
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 #91FDFF | 1.18:1 | Fails | Lc -10.4 | Not readable |
| Black text on #91FDFF | 17.69:1 | AAA | Lc 94.7 | Preferred for body text |
| #91FDFF text on white | 1.18:1 | Fails | Lc 8.9 | Not readable |
| #91FDFF text on black | 17.69:1 | AAA | Lc -95.4 | 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
#E9F9F9
oklch(97% 0.017 196.9)
-
Step 100
100 (this color)
#91FDFF
oklch(93% 0.1 197.1)
-
Step 200
200
#A0E8E9
oklch(88.4% 0.071 197)
-
Step 300
300
#32DADD
oklch(81% 0.129 196.8)
-
Step 400
400
#00B7BA
oklch(70.7% 0.12 196.9)
-
Step 500
500
#009DA0
oklch(63.1% 0.107 197.2)
-
Step 600
600
#008486
oklch(55.6% 0.095 196.7)
-
Step 700
700
#006F71
oklch(49.1% 0.084 197)
-
Step 800
800
#005B5D
oklch(42.7% 0.073 197.4)
-
Step 900
900
#004C4D
oklch(37.8% 0.064 196.3)
-
Step 950
950
#002D2E
oklch(27% 0.046 197.1)
#91FDFF 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) | #F0F4FF | 0.104 |
| Deuteranopia (no green cones) | #DDE5FF | 0.097 |
| Tritanopia (no blue cones) | #5AFFFD | 0.038 |
| Achromatopsia (no color) | #ECECEC | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91FDFF
#91FDFF
oklch(93% 0.1 197.1)
- #FFDFDF
#FFDFDF
oklch(93% 0.035 17.8)
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 #91FDFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin Egg Blue #8AF1FE ΔE 0.034
- Robin's Egg Blue #98EFF9 ΔE 0.036
- Pale Cyan #B7FFFA ΔE 0.037
- Pale Turquoise #AFEEEE ΔE 0.044
- Pale Sky Blue #BDF6FE ΔE 0.044
- Pale Aqua #B8FFEB ΔE 0.045
- Diamond #B9F2FF ΔE 0.046
- Duck Egg Blue #C3FBF4 ΔE 0.048
Use #91FDFF 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.