#ADD3EB
Closest named color: Light Blue (#ADD8E6). oklch(84.7% 0.052 236), rgb(173, 211, 235).
Aa
Black text reads best on this color (13.29:1).
About this color
#ADD3EB is a light, muted blue. In OKLCH its lightness is 85%, its chroma 0.052 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.017 away. Black text reads best on it, at 13.29:1.
| Hue family | Blues |
| Lightness | light (85%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 13.29:1 |
| White text | 1.57:1 |
Values
| HEX | #ADD3EB |
| RGB | rgb(173, 211, 235) |
| HSL | hsl(203, 61%, 80%) |
| OKLCH | oklch(84.7% 0.052 236) |
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 #ADD3EB | 1.57:1 | Fails | Lc -29.8 | Dividers and decoration only |
| Black text on #ADD3EB | 13.29:1 | AAA | Lc 77.4 | Fine for body text |
| #ADD3EB text on white | 1.57:1 | Fails | Lc 26.3 | Dividers and decoration only |
| #ADD3EB text on black | 13.29:1 | AAA | Lc -76.7 | 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 200.
-
Step 50
50
#F0F7FB
oklch(97.2% 0.009 232.4)
-
Step 100
100
#DEECF5
oklch(93.5% 0.019 235.7)
-
Step 200
200 (this color)
#ADD3EB
oklch(84.7% 0.052 236)
-
Step 300
300
#97C8E7
oklch(80.9% 0.068 236.5)
-
Step 400
400
#56ABDB
oklch(70.8% 0.108 235.9)
-
Step 500
500
#0094D0
oklch(63.1% 0.136 236.2)
-
Step 600
600
#007CAF
oklch(55.5% 0.12 236.1)
-
Step 700
700
#006994
oklch(49.2% 0.105 235.5)
-
Step 800
800
#00567A
oklch(42.8% 0.091 235.4)
-
Step 900
900
#004766
oklch(37.6% 0.081 235.8)
-
Step 950
950
#012A3E
oklch(27% 0.057 235.7)
#ADD3EB 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) | #C8D2EC | 0.034 |
| Deuteranopia (no green cones) | #C0CBEB | 0.030 |
| Tritanopia (no blue cones) | #9BD9DB | 0.038 |
| Achromatopsia (no color) | #CECECE | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ADD3EB
#ADD3EB
oklch(84.7% 0.052 236)
- #E9C5AD
#E9C5AD
oklch(84.8% 0.052 55.6)
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 #ADD3EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.017
- Light Blue Grey #B7C9E2 ΔE 0.027
- Celeste #A8DADC ΔE 0.033
- Baby Blue #A2CFFE ΔE 0.034
- Light Steel Blue #B0C4DE ΔE 0.038
- Powder Blue #B0E0E6 ΔE 0.039
- Cloudy Blue #ACC2D9 ΔE 0.045
- Sky Blue #87CEEB ΔE 0.045
Use #ADD3EB 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.