#ADD4E9
Closest named color: Light Blue (#ADD8E6). oklch(84.9% 0.051 231.6), rgb(173, 212, 233).
Aa
Black text reads best on this color (13.37:1).
About this color
#ADD4E9 is a light, muted blue. In OKLCH its lightness is 85%, its chroma 0.051 and its hue 232°. 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 13.37:1.
| Hue family | Blues |
| Lightness | light (85%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 13.37:1 |
| White text | 1.57:1 |
Values
| HEX | #ADD4E9 |
| RGB | rgb(173, 212, 233) |
| HSL | hsl(201, 58%, 80%) |
| OKLCH | oklch(84.9% 0.051 231.6) |
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 #ADD4E9 | 1.57:1 | Fails | Lc -29.4 | Dividers and decoration only |
| Black text on #ADD4E9 | 13.37:1 | AAA | Lc 77.8 | Fine for body text |
| #ADD4E9 text on white | 1.57:1 | Fails | Lc 26.0 | Dividers and decoration only |
| #ADD4E9 text on black | 13.37:1 | AAA | Lc -77.0 | 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 200.
-
Step 50
50
#F0F7FA
oklch(97.2% 0.008 225.1)
-
Step 100
100
#DEECF4
oklch(93.5% 0.018 232.5)
-
Step 200
200 (this color)
#ADD4E9
oklch(84.9% 0.051 231.6)
-
Step 300
300
#96C9E4
oklch(81% 0.065 231.7)
-
Step 400
400
#54ACD6
oklch(70.7% 0.104 231.5)
-
Step 500
500
#0096C9
oklch(63.2% 0.128 231.5)
-
Step 600
600
#007EA9
oklch(55.6% 0.112 231.2)
-
Step 700
700
#006A8F
oklch(49.2% 0.1 231.3)
-
Step 800
800
#005676
oklch(42.6% 0.087 232.3)
-
Step 900
900
#004863
oklch(37.7% 0.077 231.8)
-
Step 950
950
#002B3C
oklch(27.1% 0.054 230.4)
#ADD4E9 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) | #CAD2EA | 0.036 |
| Deuteranopia (no green cones) | #C1CBE9 | 0.033 |
| Tritanopia (no blue cones) | #9BDADB | 0.036 |
| Achromatopsia (no color) | #CECECE | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ADD4E9
#ADD4E9
oklch(84.9% 0.051 231.6)
- #E9C5B0
#E9C5B0
oklch(84.9% 0.05 52)
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 #ADD4E9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.013
- Light Blue Grey #B7C9E2 ΔE 0.029
- Celeste #A8DADC ΔE 0.029
- Powder Blue #B0E0E6 ΔE 0.035
- Baby Blue #A2CFFE ΔE 0.038
- Light Steel Blue #B0C4DE ΔE 0.041
- Cadet Gray #CED4DA ΔE 0.044
- Sky Blue #87CEEB ΔE 0.047
Use #ADD4E9 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.