#99DDCF
Closest named color: Celeste (#A8DADC). oklch(84.8% 0.071 180.2), rgb(153, 221, 207).
Aa
Black text reads best on this color (13.59:1).
About this color
#99DDCF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 85%, its chroma 0.071 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.029 away. Black text reads best on it, at 13.59:1.
| Hue family | Teals and cyans |
| Lightness | light (85%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 13.59:1 |
| White text | 1.54:1 |
Values
| HEX | #99DDCF |
| RGB | rgb(153, 221, 207) |
| HSL | hsl(168, 50%, 73%) |
| OKLCH | oklch(84.8% 0.071 180.2) |
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 #99DDCF | 1.54:1 | Fails | Lc -28.3 | Dividers and decoration only |
| Black text on #99DDCF | 13.59:1 | AAA | Lc 78.7 | Fine for body text |
| #99DDCF text on white | 1.54:1 | Fails | Lc 25.0 | Dividers and decoration only |
| #99DDCF text on black | 13.59:1 | AAA | Lc -78.1 | 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
#EDF8F6
oklch(97% 0.012 184.1)
-
Step 100
100
#D8F0EA
oklch(93.6% 0.026 179)
-
Step 200
200 (this color)
#99DDCF
oklch(84.8% 0.071 180.2)
-
Step 300
300
#79D4C3
oklch(80.8% 0.091 180.5)
-
Step 400
400
#00BAA4
oklch(70.7% 0.128 180.3)
-
Step 500
500
#00A08C
oklch(63.2% 0.115 179.7)
-
Step 600
600
#008676
oklch(55.6% 0.1 180.5)
-
Step 700
700
#007163
oklch(49.2% 0.089 180.3)
-
Step 800
800
#005C51
oklch(42.6% 0.077 181.1)
-
Step 900
900
#004D43
oklch(37.7% 0.068 180.3)
-
Step 950
950
#002E27
oklch(27% 0.049 179.5)
#99DDCF 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) | #D7D5CE | 0.075 |
| Deuteranopia (no green cones) | #CBCCD0 | 0.072 |
| Tritanopia (no blue cones) | #85DFD9 | 0.021 |
| Achromatopsia (no color) | #D0D0D0 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99DDCF
#99DDCF
oklch(84.8% 0.071 180.2)
- #F6BACB
#F6BACB
oklch(84.8% 0.072 0.1)
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 #99DDCF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.029
- Light Teal #90E4C1 ΔE 0.033
- Tiffany Blue #94D2BD ΔE 0.034
- Powder Blue #B0E0E6 ΔE 0.043
- Light Blue #ADD8E6 ΔE 0.046
- Seafoam Blue #78D1B6 ΔE 0.058
- Hospital Green #9BE5AA ΔE 0.061
- Pale Turquoise #AFEEEE ΔE 0.062
Use #99DDCF 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.