#99ECDF
Closest named color: Pale Turquoise (#AFEEEE). oklch(88.6% 0.083 183.4), rgb(153, 236, 223).
Aa
Black text reads best on this color (15.41:1).
About this color
#99ECDF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 89%, its chroma 0.083 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Pale Turquoise (#AFEEEE), ΔE 0.033 away. Black text reads best on it, at 15.41:1.
| Hue family | Teals and cyans |
| Lightness | light (89%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Pale Turquoise (#AFEEEE) |
| Black text | 15.41:1 |
| White text | 1.36:1 |
Values
| HEX | #99ECDF |
| RGB | rgb(153, 236, 223) |
| HSL | hsl(171, 69%, 76%) |
| OKLCH | oklch(88.6% 0.083 183.4) |
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 #99ECDF | 1.36:1 | Fails | Lc -20.2 | Dividers and decoration only |
| Black text on #99ECDF | 15.41:1 | AAA | Lc 86.0 | Fine for body text |
| #99ECDF text on white | 1.36:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #99ECDF text on black | 15.41:1 | AAA | Lc -86.0 | 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
#ECF9F6
oklch(97.2% 0.014 180.7)
-
Step 100
100
#D4F1EC
oklch(93.6% 0.031 184.2)
-
Step 200
200 (this color)
#99ECDF
oklch(88.6% 0.083 183.4)
-
Step 300
300
#65D7C8
oklch(80.9% 0.106 183.9)
-
Step 400
400
#00B9A9
oklch(70.6% 0.125 184)
-
Step 500
500
#009F90
oklch(63.1% 0.112 183.2)
-
Step 600
600
#008679
oklch(55.7% 0.099 183.1)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
Step 800
800
#005C53
oklch(42.6% 0.076 183.4)
-
Step 900
900
#004D45
oklch(37.7% 0.067 183.1)
-
Step 950
950
#002E29
oklch(27.1% 0.048 183.6)
#99ECDF 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) | #E5E3DF | 0.089 |
| Deuteranopia (no green cones) | #D6D8E0 | 0.084 |
| Tritanopia (no blue cones) | #7DEFE8 | 0.025 |
| Achromatopsia (no color) | #DDDDDD | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99ECDF
#99ECDF
oklch(88.6% 0.083 183.4)
- #FFC9D5
#FFC9D5
oklch(88.7% 0.063 3.6)
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 #99ECDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pale Turquoise #AFEEEE ΔE 0.033
- Robin's Egg Blue #98EFF9 ΔE 0.035
- Robin Egg Blue #8AF1FE ΔE 0.041
- Powder Blue #B0E0E6 ΔE 0.043
- Light Teal #90E4C1 ΔE 0.043
- Light Turquoise #7EF4CC ΔE 0.047
- Celeste #A8DADC ΔE 0.048
- Robin's Egg #6DEDFD ΔE 0.051
Use #99ECDF 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.