#99DEDB
Closest named color: Celeste (#A8DADC). oklch(85.4% 0.069 192.5), rgb(153, 222, 219).
Aa
Black text reads best on this color (13.82:1).
About this color
#99DEDB is a light, muted teal or cyan. In OKLCH its lightness is 85%, its chroma 0.069 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.019 away. Black text reads best on it, at 13.82:1.
| Hue family | Teals and cyans |
| Lightness | light (85%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 13.82:1 |
| White text | 1.51:1 |
Values
| HEX | #99DEDB |
| RGB | rgb(153, 222, 219) |
| HSL | hsl(177, 51%, 74%) |
| OKLCH | oklch(85.4% 0.069 192.5) |
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 #99DEDB | 1.51:1 | Fails | Lc -27.3 | Dividers and decoration only |
| Black text on #99DEDB | 13.82:1 | AAA | Lc 79.7 | Fine for body text |
| #99DEDB text on white | 1.51:1 | Fails | Lc 24.1 | Dividers and decoration only |
| #99DEDB text on black | 13.82:1 | AAA | Lc -79.1 | 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
#EDF8F7
oklch(97.1% 0.012 190.4)
-
Step 100
100
#D7F0EE
oklch(93.6% 0.026 190.9)
-
Step 200
200 (this color)
#99DEDB
oklch(85.4% 0.069 192.5)
-
Step 300
300
#76D3D0
oklch(80.9% 0.089 192.8)
-
Step 400
400
#00B8B5
oklch(70.8% 0.121 192.7)
-
Step 500
500
#009E9B
oklch(63.2% 0.108 192.4)
-
Step 600
600
#008582
oklch(55.7% 0.096 192)
-
Step 700
700
#006F6D
oklch(49% 0.084 192.6)
-
Step 800
800
#005B5A
oklch(42.6% 0.073 193.5)
-
Step 900
900
#004C4B
oklch(37.7% 0.064 193.2)
-
Step 950
950
#002D2C
oklch(26.9% 0.046 192.5)
#99DEDB 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) | #D6D7DB | 0.073 |
| Deuteranopia (no green cones) | #C9CEDC | 0.068 |
| Tritanopia (no blue cones) | #80E2DD | 0.024 |
| Achromatopsia (no color) | #D2D2D2 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99DEDB
#99DEDB
oklch(85.4% 0.069 192.5)
- #F9BDC3
#F9BDC3
oklch(85.4% 0.07 12)
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 #99DEDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.019
- Powder Blue #B0E0E6 ΔE 0.031
- Light Blue #ADD8E6 ΔE 0.034
- Tiffany Blue #94D2BD ΔE 0.046
- Light Teal #90E4C1 ΔE 0.046
- Robin's Egg Blue #98EFF9 ΔE 0.052
- Pale Turquoise #AFEEEE ΔE 0.053
- Robin's Egg #6DEDFD ΔE 0.057
Use #99DEDB 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.