#99DDD2
Closest named color: Celeste (#A8DADC). oklch(84.9% 0.07 183.4), rgb(153, 221, 210).
Aa
Black text reads best on this color (13.62:1).
About this color
#99DDD2 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 85%, its chroma 0.070 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.025 away. Black text reads best on it, at 13.62:1.
| Hue family | Teals and cyans |
| Lightness | light (85%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 13.62:1 |
| White text | 1.54:1 |
Values
| HEX | #99DDD2 |
| RGB | rgb(153, 221, 210) |
| HSL | hsl(170, 50%, 73%) |
| OKLCH | oklch(84.9% 0.07 183.4) |
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 #99DDD2 | 1.54:1 | Fails | Lc -28.2 | Dividers and decoration only |
| Black text on #99DDD2 | 13.62:1 | AAA | Lc 78.9 | Fine for body text |
| #99DDD2 text on white | 1.54:1 | Fails | Lc 24.9 | Dividers and decoration only |
| #99DDD2 text on black | 13.62:1 | AAA | Lc -78.2 | 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
#EDF8F6
oklch(97% 0.012 184.1)
-
Step 100
100
#D8F0EB
oklch(93.6% 0.026 181.8)
-
Step 200
200 (this color)
#99DDD2
oklch(84.9% 0.07 183.4)
-
Step 300
300
#79D4C6
oklch(80.9% 0.09 183)
-
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)
#99DDD2 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) | #D7D6D2 | 0.075 |
| Deuteranopia (no green cones) | #CACCD3 | 0.071 |
| Tritanopia (no blue cones) | #84E0D9 | 0.021 |
| Achromatopsia (no color) | #D0D0D0 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99DDD2
#99DDD2
oklch(84.9% 0.07 183.4)
- #F6BBC9
#F6BBC9
oklch(84.9% 0.07 2.9)
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 #99DDD2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.025
- Tiffany Blue #94D2BD ΔE 0.036
- Light Teal #90E4C1 ΔE 0.037
- Powder Blue #B0E0E6 ΔE 0.040
- Light Blue #ADD8E6 ΔE 0.043
- Seafoam Blue #78D1B6 ΔE 0.060
- Pale Turquoise #AFEEEE ΔE 0.060
- Robin's Egg Blue #98EFF9 ΔE 0.061
Use #99DDD2 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.