#ADD3DE
Closest named color: Light Blue (#ADD8E6). oklch(84.3% 0.043 217.2), rgb(173, 211, 222).
Aa
Black text reads best on this color (13.14:1).
About this color
#ADD3DE is a light, muted teal or cyan. In OKLCH its lightness is 84%, its chroma 0.043 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.015 away. Black text reads best on it, at 13.14:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 13.14:1 |
| White text | 1.59:1 |
Values
| HEX | #ADD3DE |
| RGB | rgb(173, 211, 222) |
| HSL | hsl(193, 43%, 77%) |
| OKLCH | oklch(84.3% 0.043 217.2) |
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 #ADD3DE | 1.59:1 | Fails | Lc -30.4 | Non-text elements, placeholder text |
| Black text on #ADD3DE | 13.14:1 | AAA | Lc 76.8 | Fine for body text |
| #ADD3DE text on white | 1.59:1 | Fails | Lc 27.0 | Dividers and decoration only |
| #ADD3DE text on black | 13.14:1 | AAA | Lc -76.0 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C9DDE3
oklch(88.4% 0.023 217.7)
-
Step 300
300 (this color)
#ADD3DE
oklch(84.3% 0.043 217.2)
-
Step 400
400
#6DACBD
oklch(70.8% 0.069 216.8)
-
Step 500
500
#4196AC
oklch(63% 0.087 217.6)
-
Step 600
600
#138098
oklch(55.5% 0.096 217.9)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#095869
oklch(42.6% 0.073 217.6)
-
Step 900
900
#154955
oklch(37.7% 0.057 216.3)
-
Step 950
950
#0F2B32
oklch(27.1% 0.036 216.6)
#ADD3DE 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) | #CBD0DF | 0.038 |
| Deuteranopia (no green cones) | #C3CADE | 0.035 |
| Tritanopia (no blue cones) | #9ED7D6 | 0.025 |
| Achromatopsia (no color) | #CDCDCD | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ADD3DE
#ADD3DE
oklch(84.3% 0.043 217.2)
- #E6C2B8
#E6C2B8
oklch(84.2% 0.044 36)
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 #ADD3DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.015
- Celeste #A8DADC ΔE 0.020
- Light Blue Grey #B7C9E2 ΔE 0.031
- Powder Blue #B0E0E6 ΔE 0.034
- Light Steel Blue #B0C4DE ΔE 0.040
- Cadet Gray #CED4DA ΔE 0.042
- Cloudy Blue #ACC2D9 ΔE 0.045
- Sky Blue #87CEEB ΔE 0.049
Use #ADD3DE 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.