#99EAEF
Closest named color: Robin's Egg Blue (#98EFF9). oklch(88.7% 0.079 200.8), rgb(153, 234, 239).
Aa
Black text reads best on this color (15.36:1).
About this color
#99EAEF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 89%, its chroma 0.079 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.016 away. Black text reads best on it, at 15.36:1.
| Hue family | Teals and cyans |
| Lightness | light (89%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 15.36:1 |
| White text | 1.36:1 |
Values
| HEX | #99EAEF |
| RGB | rgb(153, 234, 239) |
| HSL | hsl(183, 73%, 77%) |
| OKLCH | oklch(88.7% 0.079 200.8) |
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 #99EAEF | 1.36:1 | Fails | Lc -20.4 | Dividers and decoration only |
| Black text on #99EAEF | 15.36:1 | AAA | Lc 85.9 | Fine for body text |
| #99EAEF text on white | 1.36:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #99EAEF text on black | 15.36:1 | AAA | Lc -85.8 | 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
#ECF8F9
oklch(97% 0.013 202.9)
-
Step 100
100
#D4F0F2
oklch(93.5% 0.029 201.9)
-
Step 200
200 (this color)
#99EAEF
oklch(88.7% 0.079 200.8)
-
Step 300
300
#65D4DB
oklch(80.8% 0.102 200.9)
-
Step 400
400
#00B6BF
oklch(70.6% 0.12 201.1)
-
Step 500
500
#009CA4
oklch(63% 0.107 201.2)
-
Step 600
600
#00838A
oklch(55.5% 0.094 201.4)
-
Step 700
700
#006E74
oklch(49% 0.083 201.4)
-
Step 800
800
#005B5F
oklch(42.8% 0.073 200)
-
Step 900
900
#004B4F
oklch(37.5% 0.064 200.9)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#99EAEF 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) | #DFE3EF | 0.081 |
| Deuteranopia (no green cones) | #D0D8F0 | 0.075 |
| Tritanopia (no blue cones) | #76F0EB | 0.034 |
| Achromatopsia (no color) | #DCDCDC | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99EAEF
#99EAEF
oklch(88.7% 0.079 200.8)
- #FFCBC9
#FFCBC9
oklch(88.7% 0.059 20.9)
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 #99EAEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.016
- Robin Egg Blue #8AF1FE ΔE 0.024
- Pale Turquoise #AFEEEE ΔE 0.026
- Powder Blue #B0E0E6 ΔE 0.032
- Robin's Egg #6DEDFD ΔE 0.037
- Celeste #A8DADC ΔE 0.043
- Diamond #B9F2FF ΔE 0.047
- Light Blue #ADD8E6 ΔE 0.048
Use #99EAEF 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.