#99E5F8
Closest named color: Robin's Egg Blue (#98EFF9). oklch(87.9% 0.079 215.2), rgb(153, 229, 248).
Aa
Black text reads best on this color (14.91:1).
About this color
#99E5F8 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 88%, its chroma 0.079 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.027 away. Black text reads best on it, at 14.91:1.
| Hue family | Teals and cyans |
| Lightness | light (88%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 14.91:1 |
| White text | 1.40:1 |
Values
| HEX | #99E5F8 |
| RGB | rgb(153, 229, 248) |
| HSL | hsl(192, 87%, 79%) |
| OKLCH | oklch(87.9% 0.079 215.2) |
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 #99E5F8 | 1.40:1 | Fails | Lc -22.4 | Dividers and decoration only |
| Black text on #99E5F8 | 14.91:1 | AAA | Lc 84.1 | Fine for body text |
| #99E5F8 text on white | 1.40:1 | Fails | Lc 19.6 | Dividers and decoration only |
| #99E5F8 text on black | 14.91:1 | AAA | Lc -83.8 | 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
#ECF8FB
oklch(97.1% 0.013 214.4)
-
Step 100
100
#D5EFF6
oklch(93.5% 0.029 215.7)
-
Step 200
200 (this color)
#99E5F8
oklch(87.9% 0.079 215.2)
-
Step 300
300
#6AD1EA
oklch(80.8% 0.102 215.8)
-
Step 400
400
#00B3D1
oklch(70.6% 0.125 215.4)
-
Step 500
500
#009AB4
oklch(63.2% 0.112 215.3)
-
Step 600
600
#008197
oklch(55.5% 0.098 215.2)
-
Step 700
700
#006D7F
oklch(49.2% 0.087 214.3)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900
#004A58
oklch(37.7% 0.067 215.8)
-
Step 950
950
#002C35
oklch(27% 0.048 215.4)
#99E5F8 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) | #D7E0F9 | 0.071 |
| Deuteranopia (no green cones) | #C8D4F8 | 0.066 |
| Tritanopia (no blue cones) | #73EDEB | 0.046 |
| Achromatopsia (no color) | #D9D9D9 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99E5F8
#99E5F8
oklch(87.9% 0.079 215.2)
- #FFC9BA
#FFC9BA
oklch(88% 0.065 36.1)
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 #99E5F8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.027
- Powder Blue #B0E0E6 ΔE 0.031
- Robin Egg Blue #8AF1FE ΔE 0.032
- Light Blue #ADD8E6 ΔE 0.038
- Robin's Egg #6DEDFD ΔE 0.038
- Pale Turquoise #AFEEEE ΔE 0.040
- Celeste #A8DADC ΔE 0.041
- Diamond #B9F2FF ΔE 0.051
Use #99E5F8 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.