#99EBF8
Closest named color: Robin's Egg Blue (#98EFF9). oklch(89.2% 0.082 208.4), rgb(153, 235, 248).
Aa
Black text reads best on this color (15.59:1).
About this color
#99EBF8 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 89%, its chroma 0.082 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.010 away. Black text reads best on it, at 15.59:1.
| Hue family | Teals and cyans |
| Lightness | light (89%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 15.59:1 |
| White text | 1.34:1 |
Values
| HEX | #99EBF8 |
| RGB | rgb(153, 235, 248) |
| HSL | hsl(188, 87%, 79%) |
| OKLCH | oklch(89.2% 0.082 208.4) |
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 #99EBF8 | 1.34:1 | Fails | Lc -19.4 | Dividers and decoration only |
| Black text on #99EBF8 | 15.59:1 | AAA | Lc 86.7 | Fine for body text |
| #99EBF8 text on white | 1.34:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #99EBF8 text on black | 15.59:1 | AAA | Lc -86.7 | 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
#EBF8FA
oklch(97% 0.014 207.9)
-
Step 100
100
#D4F0F5
oklch(93.6% 0.03 209.6)
-
Step 200
200 (this color)
#99EBF8
oklch(89.2% 0.082 208.4)
-
Step 300
300
#62D3E4
oklch(80.8% 0.105 208.6)
-
Step 400
400
#00B5C8
oklch(70.7% 0.122 208)
-
Step 500
500
#009BAC
oklch(63.1% 0.109 208.4)
-
Step 600
600
#008291
oklch(55.5% 0.096 208.9)
-
Step 700
700
#006E7A
oklch(49.2% 0.085 207.9)
-
Step 800
800
#005A64
oklch(42.8% 0.073 207.9)
-
Step 900
900
#004B54
oklch(37.8% 0.065 208.5)
-
Step 950
950
#002C32
oklch(26.8% 0.046 208.8)
#99EBF8 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) | #DEE5F9 | 0.079 |
| Deuteranopia (no green cones) | #CED9F8 | 0.072 |
| Tritanopia (no blue cones) | #72F2EF | 0.041 |
| Achromatopsia (no color) | #DEDEDE | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99EBF8
#99EBF8
oklch(89.2% 0.082 208.4)
- #FFCEC6
#FFCEC6
oklch(89.2% 0.057 29)
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 #99EBF8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.010
- Robin Egg Blue #8AF1FE ΔE 0.018
- Pale Turquoise #AFEEEE ΔE 0.028
- Robin's Egg #6DEDFD ΔE 0.035
- Powder Blue #B0E0E6 ΔE 0.036
- Diamond #B9F2FF ΔE 0.041
- Celeste #A8DADC ΔE 0.049
- Light Blue #ADD8E6 ΔE 0.050
Use #99EBF8 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.