#B5DAFF
Closest named color: Light Blue (#ADD8E6). oklch(87.4% 0.065 248.6), rgb(181, 218, 255).
Aa
Black text reads best on this color (14.43:1).
About this color
#B5DAFF is a light, muted blue. In OKLCH its lightness is 87%, its chroma 0.065 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.037 away. Black text reads best on it, at 14.43:1.
| Hue family | Blues |
| Lightness | light (87%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 14.43:1 |
| White text | 1.45:1 |
Values
| HEX | #B5DAFF |
| RGB | rgb(181, 218, 255) |
| HSL | hsl(210, 100%, 85%) |
| OKLCH | oklch(87.4% 0.065 248.6) |
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 #B5DAFF | 1.45:1 | Fails | Lc -24.6 | Dividers and decoration only |
| Black text on #B5DAFF | 14.43:1 | AAA | Lc 82.1 | Fine for body text |
| #B5DAFF text on white | 1.45:1 | Fails | Lc 21.6 | Dividers and decoration only |
| #B5DAFF text on black | 14.43:1 | AAA | Lc -81.7 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEECFA
oklch(93.7% 0.024 248.1)
-
Step 200
200 (this color)
#B5DAFF
oklch(87.4% 0.065 248.6)
-
Step 300
300
#96C6F4
oklch(80.9% 0.083 247.8)
-
Step 400
400
#57A6EF
oklch(70.6% 0.133 248.6)
-
Step 500
500
#088DEA
oklch(63% 0.17 248.7)
-
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
#022847
oklch(27% 0.071 248.4)
#B5DAFF 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) | #CCDAFF | 0.028 |
| Deuteranopia (no green cones) | #C3D3FE | 0.023 |
| Tritanopia (no blue cones) | #9FE2E6 | 0.054 |
| Achromatopsia (no color) | #D6D6D6 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B5DAFF
#B5DAFF
oklch(87.4% 0.065 248.6)
- #F2CEA8
#F2CEA8
oklch(87.3% 0.065 68.3)
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 #B5DAFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.037
- Baby Blue #A2CFFE ΔE 0.039
- Powder Blue #B0E0E6 ΔE 0.044
- Light Blue Grey #B7C9E2 ΔE 0.051
- Light Periwinkle #C1C6FC ΔE 0.052
- Celeste #A8DADC ΔE 0.054
- Cadet Gray #CED4DA ΔE 0.055
- Light Sky Blue #87CEFA ΔE 0.063
Use #B5DAFF 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.