#99E5FC
Closest named color: Robin's Egg Blue (#98EFF9). oklch(88% 0.081 218.9), rgb(153, 229, 252).
Aa
Black text reads best on this color (14.96:1).
About this color
#99E5FC is a light, moderately saturated teal or cyan. In OKLCH its lightness is 88%, its chroma 0.081 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.029 away. Black text reads best on it, at 14.96:1.
| Hue family | Teals and cyans |
| Lightness | light (88%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 14.96:1 |
| White text | 1.40:1 |
Values
| HEX | #99E5FC |
| RGB | rgb(153, 229, 252) |
| HSL | hsl(194, 94%, 79%) |
| OKLCH | oklch(88% 0.081 218.9) |
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 #99E5FC | 1.40:1 | Fails | Lc -22.2 | Dividers and decoration only |
| Black text on #99E5FC | 14.96:1 | AAA | Lc 84.3 | Fine for body text |
| #99E5FC text on white | 1.40:1 | Fails | Lc 19.4 | Dividers and decoration only |
| #99E5FC text on black | 14.96:1 | AAA | Lc -84.1 | 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
#D5EFF8
oklch(93.6% 0.03 220.6)
-
Step 200
200 (this color)
#99E5FC
oklch(88% 0.081 218.9)
-
Step 300
300
#69D1EE
oklch(80.9% 0.104 218.5)
-
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
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00586B
oklch(42.5% 0.077 219.1)
-
Step 900
900
#004A5A
oklch(37.8% 0.068 218.5)
-
Step 950
950
#002C36
oklch(27% 0.048 217.4)
#99E5FC 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) | #D6E0FD | 0.070 |
| Deuteranopia (no green cones) | #C7D5FC | 0.063 |
| Tritanopia (no blue cones) | #71EDEC | 0.050 |
| Achromatopsia (no color) | #DADADA | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99E5FC
#99E5FC
oklch(88% 0.081 218.9)
- #FFCAB8
#FFCAB8
oklch(88.1% 0.065 39.6)
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 #99E5FC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.029
- Robin Egg Blue #8AF1FE ΔE 0.033
- Powder Blue #B0E0E6 ΔE 0.035
- Robin's Egg #6DEDFD ΔE 0.040
- Light Blue #ADD8E6 ΔE 0.040
- Pale Turquoise #AFEEEE ΔE 0.043
- Celeste #A8DADC ΔE 0.045
- Diamond #B9F2FF ΔE 0.051
Use #99E5FC 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.