#99EBF3
Closest named color: Robin's Egg Blue (#98EFF9). oklch(89% 0.08 203.7), rgb(153, 235, 243).
Aa
Black text reads best on this color (15.53:1).
About this color
#99EBF3 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 89%, its chroma 0.080 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.011 away. Black text reads best on it, at 15.53:1.
| Hue family | Teals and cyans |
| Lightness | light (89%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 15.53:1 |
| White text | 1.35:1 |
Values
| HEX | #99EBF3 |
| RGB | rgb(153, 235, 243) |
| HSL | hsl(185, 79%, 78%) |
| OKLCH | oklch(89% 0.08 203.7) |
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 #99EBF3 | 1.35:1 | Fails | Lc -19.7 | Dividers and decoration only |
| Black text on #99EBF3 | 15.53:1 | AAA | Lc 86.5 | Fine for body text |
| #99EBF3 text on white | 1.35:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #99EBF3 text on black | 15.53:1 | AAA | Lc -86.4 | 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
#D4F0F3
oklch(93.6% 0.03 204.5)
-
Step 200
200 (this color)
#99EBF3
oklch(89% 0.08 203.7)
-
Step 300
300
#63D4DF
oklch(80.9% 0.103 203.9)
-
Step 400
400
#00B6C2
oklch(70.7% 0.12 203.2)
-
Step 500
500
#009CA7
oklch(63.1% 0.108 203.6)
-
Step 600
600
#00838C
oklch(55.6% 0.095 203.3)
-
Step 700
700
#006E76
oklch(49.1% 0.084 203.6)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#99EBF3 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) | #DFE4F4 | 0.081 |
| Deuteranopia (no green cones) | #D0D9F3 | 0.074 |
| Tritanopia (no blue cones) | #74F1ED | 0.037 |
| Achromatopsia (no color) | #DDDDDD | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99EBF3
#99EBF3
oklch(89% 0.08 203.7)
- #FFCDC9
#FFCDC9
oklch(89.1% 0.057 23.6)
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 #99EBF3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.011
- Robin Egg Blue #8AF1FE ΔE 0.020
- Pale Turquoise #AFEEEE ΔE 0.026
- Powder Blue #B0E0E6 ΔE 0.034
- Robin's Egg #6DEDFD ΔE 0.036
- Diamond #B9F2FF ΔE 0.043
- Celeste #A8DADC ΔE 0.046
- Light Blue #ADD8E6 ΔE 0.050
Use #99EBF3 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.