#ADD4EF
Closest named color: Light Blue (#ADD8E6). oklch(85.1% 0.056 238.5), rgb(173, 212, 239).
Aa
Black text reads best on this color (13.44:1).
About this color
#ADD4EF is a light, muted blue. In OKLCH its lightness is 85%, its chroma 0.056 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.019 away. Black text reads best on it, at 13.44:1.
| Hue family | Blues |
| Lightness | light (85%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 13.44:1 |
| White text | 1.56:1 |
Values
| HEX | #ADD4EF |
| RGB | rgb(173, 212, 239) |
| HSL | hsl(205, 67%, 81%) |
| OKLCH | oklch(85.1% 0.056 238.5) |
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 #ADD4EF | 1.56:1 | Fails | Lc -29.1 | Dividers and decoration only |
| Black text on #ADD4EF | 13.44:1 | AAA | Lc 78.1 | Fine for body text |
| #ADD4EF text on white | 1.56:1 | Fails | Lc 25.7 | Dividers and decoration only |
| #ADD4EF text on black | 13.44:1 | AAA | Lc -77.3 | 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
#DEECF6
oklch(93.6% 0.02 238.7)
-
Step 200
200 (this color)
#ADD4EF
oklch(85.1% 0.056 238.5)
-
Step 300
300
#95C8EA
oklch(80.9% 0.072 238)
-
Step 400
400
#53AAE0
oklch(70.7% 0.115 238.6)
-
Step 500
500
#0093D4
oklch(63% 0.141 238.5)
-
Step 600
600
#007CB3
oklch(55.7% 0.124 238.2)
-
Step 700
700
#006897
oklch(49.1% 0.109 238.1)
-
Step 800
800
#00557D
oklch(42.7% 0.096 238.5)
-
Step 900
900
#004769
oklch(37.8% 0.084 238.3)
-
Step 950
950
#002A40
oklch(27% 0.06 237.8)
#ADD4EF 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) | #C8D3F0 | 0.034 |
| Deuteranopia (no green cones) | #BFCCEF | 0.029 |
| Tritanopia (no blue cones) | #99DBDD | 0.043 |
| Achromatopsia (no color) | #CFCFCF | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ADD4EF
#ADD4EF
oklch(85.1% 0.056 238.5)
- #EBC6AB
#EBC6AB
oklch(85.2% 0.056 58)
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 #ADD4EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.019
- Light Blue Grey #B7C9E2 ΔE 0.030
- Baby Blue #A2CFFE ΔE 0.031
- Celeste #A8DADC ΔE 0.036
- Powder Blue #B0E0E6 ΔE 0.039
- Light Steel Blue #B0C4DE ΔE 0.042
- Sky Blue #87CEEB ΔE 0.047
- Cadet Gray #CED4DA ΔE 0.048
Use #ADD4EF 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.