#99E5DF
Closest named color: Celeste (#A8DADC). oklch(87.1% 0.076 189.6), rgb(153, 229, 223).
Aa
Black text reads best on this color (14.62:1).
About this color
#99E5DF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 87%, its chroma 0.076 and its hue 190°. 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 14.62:1.
| Hue family | Teals and cyans |
| Lightness | light (87%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 14.62:1 |
| White text | 1.43:1 |
Values
| HEX | #99E5DF |
| RGB | rgb(153, 229, 223) |
| HSL | hsl(175, 59%, 75%) |
| OKLCH | oklch(87.1% 0.076 189.6) |
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 #99E5DF | 1.43:1 | Fails | Lc -23.7 | Dividers and decoration only |
| Black text on #99E5DF | 14.62:1 | AAA | Lc 82.9 | Fine for body text |
| #99E5DF text on white | 1.43:1 | Fails | Lc 20.8 | Dividers and decoration only |
| #99E5DF text on black | 14.62:1 | AAA | Lc -82.6 | 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
#D6F0EE
oklch(93.6% 0.027 191.1)
-
Step 200
200 (this color)
#99E5DF
oklch(87.1% 0.076 189.6)
-
Step 300
300
#6ED5CE
oklch(80.9% 0.097 189.6)
-
Step 400
400
#00B8B1
oklch(70.6% 0.122 190)
-
Step 500
500
#009E98
oklch(63.1% 0.109 190)
-
Step 600
600
#00857F
oklch(55.6% 0.096 189.2)
-
Step 700
700
#00706B
oklch(49.2% 0.085 189.4)
-
Step 800
800
#005C58
oklch(42.8% 0.074 189.6)
-
Step 900
900
#004C49
oklch(37.6% 0.065 190.2)
-
Step 950
950
#002E2B
oklch(27.1% 0.047 188)
#99E5DF 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) | #DDDDDF | 0.081 |
| Deuteranopia (no green cones) | #CFD3E0 | 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°).
- #99E5DF
#99E5DF
oklch(87.1% 0.076 189.6)
- #FFC2CA
#FFC2CA
oklch(87.1% 0.071 9.9)
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 #99E5DF, 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 0.031
- Robin's Egg Blue #98EFF9 ΔE 0.038
- Pale Turquoise #AFEEEE ΔE 0.039
- Light Teal #90E4C1 ΔE 0.043
- Light Blue #ADD8E6 ΔE 0.044
- Robin Egg Blue #8AF1FE ΔE 0.044
- Robin's Egg #6DEDFD ΔE 0.049
Use #99E5DF 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.