#ADD3D8
Closest named color: Celeste (#A8DADC). oklch(84.1% 0.041 206.2), rgb(173, 211, 216).
Aa
Black text reads best on this color (13.08:1).
About this color
#ADD3D8 is a light, muted teal or cyan. In OKLCH its lightness is 84%, its chroma 0.041 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.018 away. Black text reads best on it, at 13.08:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 13.08:1 |
| White text | 1.60:1 |
Values
| HEX | #ADD3D8 |
| RGB | rgb(173, 211, 216) |
| HSL | hsl(187, 36%, 76%) |
| OKLCH | oklch(84.1% 0.041 206.2) |
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 #ADD3D8 | 1.60:1 | Fails | Lc -30.7 | Non-text elements, placeholder text |
| Black text on #ADD3D8 | 13.08:1 | AAA | Lc 76.6 | Fine for body text |
| #ADD3D8 text on white | 1.60:1 | Fails | Lc 27.2 | Dividers and decoration only |
| #ADD3D8 text on black | 13.08:1 | AAA | Lc -75.7 | 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 300.
-
Step 50
50
#F1F6F7
oklch(97% 0.005 211)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300 (this color)
#ADD3D8
oklch(84.1% 0.041 206.2)
-
Step 400
400
#6EADB5
oklch(70.8% 0.066 206)
-
Step 500
500
#4298A2
oklch(63.1% 0.083 205.7)
-
Step 600
600
#16828D
oklch(55.6% 0.09 205.8)
-
Step 700
700
#006E78
oklch(49.1% 0.084 205.8)
-
Step 800
800
#0B5A62
oklch(42.8% 0.07 205.8)
-
Step 900
900
#164A50
oklch(37.8% 0.054 206)
-
Step 950
950
#0F2B2F
oklch(26.9% 0.034 207.9)
#ADD3D8 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) | #CDD0D8 | 0.040 |
| Deuteranopia (no green cones) | #C5CAD8 | 0.037 |
| Tritanopia (no blue cones) | #A0D6D4 | 0.019 |
| Achromatopsia (no color) | #CCCCCC | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ADD3D8
#ADD3D8
oklch(84.1% 0.041 206.2)
- #E4C1BD
#E4C1BD
oklch(84% 0.041 25.7)
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 #ADD3D8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.018
- Light Blue #ADD8E6 ΔE 0.020
- Powder Blue #B0E0E6 ΔE 0.035
- Light Blue Grey #B7C9E2 ΔE 0.036
- Cadet Gray #CED4DA ΔE 0.042
- Light Steel Blue #B0C4DE ΔE 0.044
- Cloudy Blue #ACC2D9 ΔE 0.047
- Light Gray #D3D3D3 ΔE 0.048
Use #ADD3D8 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.