#99E5DE
Closest named color: Celeste (#A8DADC). oklch(87% 0.076 188.6), rgb(153, 229, 222).
Aa
Black text reads best on this color (14.61:1).
About this color
#99E5DE is a light, moderately saturated teal or cyan. In OKLCH its lightness is 87%, its chroma 0.076 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.031 away. Black text reads best on it, at 14.61:1.
| Hue family | Teals and cyans |
| Lightness | light (87%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 14.61:1 |
| White text | 1.43:1 |
Values
| HEX | #99E5DE |
| RGB | rgb(153, 229, 222) |
| HSL | hsl(174, 59%, 75%) |
| OKLCH | oklch(87% 0.076 188.6) |
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 #99E5DE | 1.43:1 | Fails | Lc -23.7 | Dividers and decoration only |
| Black text on #99E5DE | 14.61:1 | AAA | Lc 82.9 | Fine for body text |
| #99E5DE text on white | 1.43:1 | Fails | Lc 20.8 | Dividers and decoration only |
| #99E5DE text on black | 14.61:1 | AAA | Lc -82.5 | 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
#ECF8F7
oklch(97% 0.013 191)
-
Step 100
100
#D6F0ED
oklch(93.5% 0.028 188.3)
-
Step 200
200 (this color)
#99E5DE
oklch(87% 0.076 188.6)
-
Step 300
300
#6ED5CD
oklch(80.9% 0.097 188.8)
-
Step 400
400
#00B9AF
oklch(70.8% 0.123 188)
-
Step 500
500
#009E96
oklch(63% 0.109 188.5)
-
Step 600
600
#00857E
oklch(55.6% 0.097 188.3)
-
Step 700
700
#00706A
oklch(49.1% 0.085 188.3)
-
Step 800
800
#005C57
oklch(42.8% 0.074 188.4)
-
Step 900
900
#004C48
oklch(37.6% 0.065 188.7)
-
Step 950
950
#002E2B
oklch(27.1% 0.047 188)
#99E5DE 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) | #DDDDDE | 0.081 |
| Deuteranopia (no green cones) | #CFD3DF | 0.076 |
| Tritanopia (no blue cones) | #7EE9E3 | 0.024 |
| Achromatopsia (no color) | #D7D7D7 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99E5DE
#99E5DE
oklch(87% 0.076 188.6)
- #FFC2CB
#FFC2CB
oklch(87.1% 0.071 8.8)
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 #99E5DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.031
- Powder Blue #B0E0E6 ΔE 0.032
- Robin's Egg Blue #98EFF9 ΔE 0.039
- Pale Turquoise #AFEEEE ΔE 0.040
- Light Teal #90E4C1 ΔE 0.042
- Light Blue #ADD8E6 ΔE 0.045
- Robin Egg Blue #8AF1FE ΔE 0.045
- Robin's Egg #6DEDFD ΔE 0.049
Use #99E5DE 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.