#ADD3E5
Closest named color: Light Blue (#ADD8E6). oklch(84.5% 0.047 228.3), rgb(173, 211, 229).
Aa
Black text reads best on this color (13.22:1).
About this color
#ADD3E5 is a light, muted teal or cyan. In OKLCH its lightness is 85%, its chroma 0.047 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.013 away. Black text reads best on it, at 13.22:1.
| Hue family | Teals and cyans |
| Lightness | light (85%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 13.22:1 |
| White text | 1.58:1 |
Values
| HEX | #ADD3E5 |
| RGB | rgb(173, 211, 229) |
| HSL | hsl(199, 52%, 79%) |
| OKLCH | oklch(84.5% 0.047 228.3) |
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 #ADD3E5 | 1.58:1 | Fails | Lc -30.1 | Non-text elements, placeholder text |
| Black text on #ADD3E5 | 13.22:1 | AAA | Lc 77.2 | Fine for body text |
| #ADD3E5 text on white | 1.58:1 | Fails | Lc 26.6 | Dividers and decoration only |
| #ADD3E5 text on black | 13.22:1 | AAA | Lc -76.4 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C8DDE7
oklch(88.5% 0.026 227.9)
-
Step 300
300 (this color)
#ADD3E5
oklch(84.5% 0.047 228.3)
-
Step 400
400
#6CAAC6
oklch(70.6% 0.076 228.4)
-
Step 500
500
#3F95B8
oklch(63.2% 0.097 228.2)
-
Step 600
600
#0F7EA4
oklch(55.5% 0.106 228.8)
-
Step 700
700
#006A8B
oklch(49% 0.096 228.3)
-
Step 800
800
#075772
oklch(42.7% 0.081 228.4)
-
Step 900
900
#14485C
oklch(37.8% 0.063 228)
-
Step 950
950
#0E2A36
oklch(27% 0.04 229.1)
#ADD3E5 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) | #CAD1E6 | 0.036 |
| Deuteranopia (no green cones) | #C1CAE5 | 0.033 |
| Tritanopia (no blue cones) | #9CD8D9 | 0.032 |
| Achromatopsia (no color) | #CDCDCD | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ADD3E5
#ADD3E5
oklch(84.5% 0.047 228.3)
- #E7C4B2
#E7C4B2
oklch(84.6% 0.047 48.8)
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 #ADD3E5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.013
- Celeste #A8DADC ΔE 0.027
- Light Blue Grey #B7C9E2 ΔE 0.027
- Powder Blue #B0E0E6 ΔE 0.035
- Light Steel Blue #B0C4DE ΔE 0.038
- Baby Blue #A2CFFE ΔE 0.042
- Cadet Gray #CED4DA ΔE 0.043
- Cloudy Blue #ACC2D9 ΔE 0.044
Use #ADD3E5 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.