#ADD4DA
Closest named color: Celeste (#A8DADC). oklch(84.4% 0.042 207.8), rgb(173, 212, 218).
Aa
Black text reads best on this color (13.20:1).
About this color
#ADD4DA is a light, muted teal or cyan. In OKLCH its lightness is 84%, its chroma 0.042 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.016 away. Black text reads best on it, at 13.20:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 13.20:1 |
| White text | 1.59:1 |
Values
| HEX | #ADD4DA |
| RGB | rgb(173, 212, 218) |
| HSL | hsl(188, 38%, 77%) |
| OKLCH | oklch(84.4% 0.042 207.8) |
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 #ADD4DA | 1.59:1 | Fails | Lc -30.2 | Non-text elements, placeholder text |
| Black text on #ADD4DA | 13.20:1 | AAA | Lc 77.1 | Fine for body text |
| #ADD4DA text on white | 1.59:1 | Fails | Lc 26.7 | Dividers and decoration only |
| #ADD4DA text on black | 13.20:1 | AAA | Lc -76.3 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C8DEE1
oklch(88.5% 0.024 206.6)
-
Step 300
300 (this color)
#ADD4DA
oklch(84.4% 0.042 207.8)
-
Step 400
400
#6DADB6
oklch(70.8% 0.067 207.1)
-
Step 500
500
#3F98A4
oklch(63.1% 0.086 207.4)
-
Step 600
600
#0D8290
oklch(55.6% 0.093 208.4)
-
Step 700
700
#006E79
oklch(49.2% 0.084 206.9)
-
Step 800
800
#065A63
oklch(42.8% 0.072 206.9)
-
Step 900
900
#144A51
oklch(37.8% 0.056 207.5)
-
Step 950
950
#0E2B2F
oklch(26.9% 0.035 207.5)
#ADD4DA 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) | #CDD1DA | 0.040 |
| Deuteranopia (no green cones) | #C5CADA | 0.038 |
| Tritanopia (no blue cones) | #9FD8D6 | 0.021 |
| Achromatopsia (no color) | #CDCDCD | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ADD4DA
#ADD4DA
oklch(84.4% 0.042 207.8)
- #E6C2BD
#E6C2BD
oklch(84.4% 0.042 27.3)
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 #ADD4DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.016
- Light Blue #ADD8E6 ΔE 0.017
- Powder Blue #B0E0E6 ΔE 0.032
- Light Blue Grey #B7C9E2 ΔE 0.037
- Cadet Gray #CED4DA ΔE 0.042
- Light Steel Blue #B0C4DE ΔE 0.045
- Light Gray #D3D3D3 ΔE 0.048
- Cloudy Blue #ACC2D9 ΔE 0.049
Use #ADD4DA 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.