#ADD4FB
Closest named color: Baby Blue (#A2CFFE). oklch(85.5% 0.068 248.6), rgb(173, 212, 251).
Aa
Black text reads best on this color (13.58:1).
About this color
#ADD4FB is a light, muted blue. In OKLCH its lightness is 86%, its chroma 0.068 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.021 away. Black text reads best on it, at 13.58:1.
| Hue family | Blues |
| Lightness | light (86%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 13.58:1 |
| White text | 1.54:1 |
Values
| HEX | #ADD4FB |
| RGB | rgb(173, 212, 251) |
| HSL | hsl(210, 91%, 83%) |
| OKLCH | oklch(85.5% 0.068 248.6) |
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 #ADD4FB | 1.54:1 | Fails | Lc -28.4 | Dividers and decoration only |
| Black text on #ADD4FB | 13.58:1 | AAA | Lc 78.7 | Fine for body text |
| #ADD4FB text on white | 1.54:1 | Fails | Lc 25.1 | Dividers and decoration only |
| #ADD4FB text on black | 13.58:1 | AAA | Lc -78.0 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DDECFB
oklch(93.6% 0.026 248.1)
-
Step 200
200 (this color)
#ADD4FB
oklch(85.5% 0.068 248.6)
-
Step 300
300
#94C6F7
oklch(80.9% 0.087 248.4)
-
Step 400
400
#51A6F4
oklch(70.7% 0.141 248.7)
-
Step 500
500
#008DEC
oklch(63.1% 0.173 248.9)
-
Step 600
600
#0077C7
oklch(55.7% 0.152 248.5)
-
Step 700
700
#0064A8
oklch(49.2% 0.133 248.3)
-
Step 800
800
#00518B
oklch(42.6% 0.117 248.8)
-
Step 900
900
#004475
oklch(37.8% 0.103 248.3)
-
Step 950
950
#002848
oklch(27% 0.073 248.1)
#ADD4FB 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) | #C5D4FD | 0.030 |
| Deuteranopia (no green cones) | #BCCCFA | 0.026 |
| Tritanopia (no blue cones) | #95DDE1 | 0.058 |
| Achromatopsia (no color) | #D0D0D0 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ADD4FB
#ADD4FB
oklch(85.5% 0.068 248.6)
- #EEC89F
#EEC89F
oklch(85.6% 0.069 68.8)
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 #ADD4FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.021
- Light Blue #ADD8E6 ΔE 0.035
- Light Blue Grey #B7C9E2 ΔE 0.038
- Light Periwinkle #C1C6FC ΔE 0.043
- Light Sky Blue #87CEFA ΔE 0.046
- Light Steel Blue #B0C4DE ΔE 0.049
- Powder Blue #B0E0E6 ΔE 0.051
- Sky Blue #87CEEB ΔE 0.052
Use #ADD4FB 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.