#99EFDB
Closest named color: Pale Turquoise (#AFEEEE). oklch(89.2% 0.088 177.8), rgb(153, 239, 219).
Aa
Black text reads best on this color (15.72:1).
About this color
#99EFDB is a light, moderately saturated teal or cyan. In OKLCH its lightness is 89%, its chroma 0.088 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Pale Turquoise (#AFEEEE), ΔE 0.038 away. Black text reads best on it, at 15.72:1.
| Hue family | Teals and cyans |
| Lightness | light (89%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Pale Turquoise (#AFEEEE) |
| Black text | 15.72:1 |
| White text | 1.33:1 |
Values
| HEX | #99EFDB |
| RGB | rgb(153, 239, 219) |
| HSL | hsl(166, 73%, 77%) |
| OKLCH | oklch(89.2% 0.088 177.8) |
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 #99EFDB | 1.33:1 | Fails | Lc -18.8 | Dividers and decoration only |
| Black text on #99EFDB | 15.72:1 | AAA | Lc 87.2 | Fine for body text |
| #99EFDB text on white | 1.33:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #99EFDB text on black | 15.72:1 | AAA | Lc -87.2 | 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
#EBF9F5
oklch(97.1% 0.016 177.1)
-
Step 100
100
#D4F2EA
oklch(93.7% 0.033 177.7)
-
Step 200
200 (this color)
#99EFDB
oklch(89.2% 0.088 177.8)
-
Step 300
300
#62D9C0
oklch(81% 0.114 177.4)
-
Step 400
400
#00BAA0
oklch(70.6% 0.13 177.9)
-
Step 500
500
#00A089
oklch(63.1% 0.116 177.6)
-
Step 600
600
#008673
oklch(55.5% 0.102 178.1)
-
Step 700
700
#007160
oklch(49.1% 0.091 177.4)
-
Step 800
800
#005D4F
oklch(42.8% 0.079 177.8)
-
Step 900
900
#004D41
oklch(37.6% 0.069 177.7)
-
Step 950
950
#002E26
oklch(26.9% 0.05 177.5)
#99EFDB 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) | #E9E5DA | 0.094 |
| Deuteranopia (no green cones) | #DADADD | 0.090 |
| Tritanopia (no blue cones) | #7EF1E9 | 0.027 |
| Achromatopsia (no color) | #DFDFDF | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99EFDB
#99EFDB
oklch(89.2% 0.088 177.8)
- #FFCBDB
#FFCBDB
oklch(89.2% 0.062 358.1)
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 #99EFDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pale Turquoise #AFEEEE ΔE 0.038
- Light Turquoise #7EF4CC ΔE 0.038
- Light Teal #90E4C1 ΔE 0.042
- Robin's Egg Blue #98EFF9 ΔE 0.042
- Light Aqua #8CFFDB ΔE 0.044
- Robin Egg Blue #8AF1FE ΔE 0.047
- Aquamarine #7FFFD4 ΔE 0.051
- Powder Blue #B0E0E6 ΔE 0.053
Use #99EFDB 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.