#ADD3EF
Closest named color: Light Blue (#ADD8E6). oklch(84.9% 0.056 240.3), rgb(173, 211, 239).
Aa
Black text reads best on this color (13.34:1).
About this color
#ADD3EF is a light, muted blue. In OKLCH its lightness is 85%, its chroma 0.056 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.021 away. Black text reads best on it, at 13.34:1.
| Hue family | Blues |
| Lightness | light (85%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 13.34:1 |
| White text | 1.57:1 |
Values
| HEX | #ADD3EF |
| RGB | rgb(173, 211, 239) |
| HSL | hsl(205, 67%, 81%) |
| OKLCH | oklch(84.9% 0.056 240.3) |
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 #ADD3EF | 1.57:1 | Fails | Lc -29.6 | Dividers and decoration only |
| Black text on #ADD3EF | 13.34:1 | AAA | Lc 77.6 | Fine for body text |
| #ADD3EF text on white | 1.57:1 | Fails | Lc 26.1 | Dividers and decoration only |
| #ADD3EF text on black | 13.34:1 | AAA | Lc -76.9 | 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
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DEECF7
oklch(93.6% 0.021 241.4)
-
Step 200
200 (this color)
#ADD3EF
oklch(84.9% 0.056 240.3)
-
Step 300
300
#96C7EB
oklch(80.8% 0.072 240.6)
-
Step 400
400
#56A9E1
oklch(70.6% 0.115 240.6)
-
Step 500
500
#0092D8
oklch(63% 0.146 240.6)
-
Step 600
600
#007BB6
oklch(55.6% 0.128 240.2)
-
Step 700
700
#00679A
oklch(49.1% 0.113 240.5)
-
Step 800
800
#00547F
oklch(42.6% 0.099 240.7)
-
Step 900
900
#00466B
oklch(37.7% 0.087 240.8)
-
Step 950
950
#012941
oklch(26.9% 0.062 241.1)
#ADD3EF 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) | #C7D2F0 | 0.032 |
| Deuteranopia (no green cones) | #BECBEF | 0.028 |
| Tritanopia (no blue cones) | #99DADC | 0.044 |
| Achromatopsia (no color) | #CECECE | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ADD3EF
#ADD3EF
oklch(84.9% 0.056 240.3)
- #EAC6A9
#EAC6A9
oklch(85% 0.057 60.8)
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 #ADD3EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.021
- Light Blue Grey #B7C9E2 ΔE 0.028
- Baby Blue #A2CFFE ΔE 0.029
- Celeste #A8DADC ΔE 0.038
- Light Steel Blue #B0C4DE ΔE 0.040
- Powder Blue #B0E0E6 ΔE 0.041
- Sky Blue #87CEEB ΔE 0.046
- Cloudy Blue #ACC2D9 ΔE 0.047
Use #ADD3EF 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.