#ADD3DA
Closest named color: Light Blue (#ADD8E6). oklch(84.2% 0.041 210), rgb(173, 211, 218).
Aa
Black text reads best on this color (13.10:1).
About this color
#ADD3DA is a light, muted teal or cyan. In OKLCH its lightness is 84%, its chroma 0.041 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.018 away. Black text reads best on it, at 13.10:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 13.10:1 |
| White text | 1.60:1 |
Values
| HEX | #ADD3DA |
| RGB | rgb(173, 211, 218) |
| HSL | hsl(189, 38%, 77%) |
| OKLCH | oklch(84.2% 0.041 210) |
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 #ADD3DA | 1.60:1 | Fails | Lc -30.6 | Non-text elements, placeholder text |
| Black text on #ADD3DA | 13.10:1 | AAA | Lc 76.7 | Fine for body text |
| #ADD3DA text on white | 1.60:1 | Fails | Lc 27.1 | Dividers and decoration only |
| #ADD3DA text on black | 13.10:1 | AAA | Lc -75.8 | 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
#C9DEE1
oklch(88.6% 0.023 207.1)
-
Step 300
300 (this color)
#ADD3DA
oklch(84.2% 0.041 210)
-
Step 400
400
#6EACB7
oklch(70.6% 0.066 209.9)
-
Step 500
500
#4297A6
oklch(63% 0.084 210.9)
-
Step 600
600
#158191
oklch(55.5% 0.092 210.7)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#0B5964
oklch(42.6% 0.07 210)
-
Step 900
900
#164952
oklch(37.6% 0.055 211.5)
-
Step 950
950
#0F2B30
oklch(27% 0.035 210.9)
#ADD3DA 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) | #CCD0DA | 0.039 |
| Deuteranopia (no green cones) | #C4CADA | 0.036 |
| Tritanopia (no blue cones) | #A0D7D5 | 0.021 |
| Achromatopsia (no color) | #CCCCCC | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ADD3DA
#ADD3DA
oklch(84.2% 0.041 210)
- #E5C2BB
#E5C2BB
oklch(84.2% 0.041 31.2)
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 #ADD3DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.018
- Celeste #A8DADC ΔE 0.018
- Light Blue Grey #B7C9E2 ΔE 0.034
- Powder Blue #B0E0E6 ΔE 0.035
- Cadet Gray #CED4DA ΔE 0.042
- Light Steel Blue #B0C4DE ΔE 0.043
- Cloudy Blue #ACC2D9 ΔE 0.046
- Light Gray #D3D3D3 ΔE 0.048
Use #ADD3DA 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.