#99F4FF
Closest named color: Robin's Egg Blue (#98EFF9). oklch(91.4% 0.088 205.5), rgb(153, 244, 255).
Aa
Black text reads best on this color (16.73:1).
About this color
#99F4FF is a very light, moderately saturated teal or cyan. In OKLCH its lightness is 91%, its chroma 0.088 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.014 away. Black text reads best on it, at 16.73:1.
| Hue family | Teals and cyans |
| Lightness | very light (91%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 16.73:1 |
| White text | 1.25:1 |
Values
| HEX | #99F4FF |
| RGB | rgb(153, 244, 255) |
| HSL | hsl(186, 100%, 80%) |
| OKLCH | oklch(91.4% 0.088 205.5) |
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 #99F4FF | 1.25:1 | Fails | Lc -14.5 | Not readable |
| Black text on #99F4FF | 16.73:1 | AAA | Lc 91.1 | Preferred for body text |
| #99F4FF text on white | 1.25:1 | Fails | Lc 12.5 | Not readable |
| #99F4FF text on black | 16.73:1 | 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)
#99F4FF
oklch(91.4% 0.088 205.5)
-
Step 200
200
#A8E6ED
oklch(88.5% 0.063 204.8)
-
Step 300
300
#54D5E4
oklch(80.8% 0.113 205.9)
-
Step 400
400
#00B5C5
oklch(70.6% 0.121 206)
-
Step 500
500
#009CA9
oklch(63.2% 0.108 205.2)
-
Step 600
600
#00838E
oklch(55.7% 0.095 205.2)
-
Step 700
700
#006E78
oklch(49.1% 0.084 205.8)
-
Step 800
800
#005A62
oklch(42.7% 0.073 205.3)
-
Step 900
900
#004B52
oklch(37.7% 0.064 205.5)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#99F4FF 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 | 0.088 |
| Deuteranopia (no green cones) | #D5E0FF | 0.080 |
| Tritanopia (no blue cones) | #6DFBF7 | 0.042 |
| Achromatopsia (no color) | #E5E5E5 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99F4FF
#99F4FF
oklch(91.4% 0.088 205.5)
- #FFD8D4
#FFD8D4
oklch(91.4% 0.044 24.9)
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 #99F4FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.014
- Robin Egg Blue #8AF1FE ΔE 0.017
- Pale Turquoise #AFEEEE ΔE 0.029
- Diamond #B9F2FF ΔE 0.032
- Pale Sky Blue #BDF6FE ΔE 0.038
- Robin's Egg #6DEDFD ΔE 0.043
- Pale Cyan #B7FFFA ΔE 0.046
- Duck Egg Blue #C3FBF4 ΔE 0.052
Use #99F4FF 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.