#B4DEFF
Closest named color: Light Blue (#ADD8E6). oklch(88.2% 0.063 242.1), rgb(180, 222, 255).
Aa
Black text reads best on this color (14.83:1).
About this color
#B4DEFF is a light, muted blue. In OKLCH its lightness is 88%, its chroma 0.063 and its hue 242°. 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 14.83:1.
| Hue family | Blues |
| Lightness | light (88%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 14.83:1 |
| White text | 1.41:1 |
Values
| HEX | #B4DEFF |
| RGB | rgb(180, 222, 255) |
| HSL | hsl(206, 100%, 85%) |
| OKLCH | oklch(88.2% 0.063 242.1) |
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 #B4DEFF | 1.41:1 | Fails | Lc -22.8 | Dividers and decoration only |
| Black text on #B4DEFF | 14.83:1 | AAA | Lc 83.7 | Fine for body text |
| #B4DEFF text on white | 1.41:1 | Fails | Lc 20.0 | Dividers and decoration only |
| #B4DEFF text on black | 14.83:1 | AAA | Lc -83.4 | 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
#EFF7FC
oklch(97.2% 0.011 234.8)
-
Step 100
100
#DDECF9
oklch(93.6% 0.024 244.1)
-
Step 200
200 (this color)
#B4DEFF
oklch(88.2% 0.063 242.1)
-
Step 300
300
#92C8F1
oklch(81% 0.081 241.7)
-
Step 400
400
#4BA9EB
oklch(70.7% 0.131 242.5)
-
Step 500
500
#0092DB
oklch(63.2% 0.149 241.7)
-
Step 600
600
#007AB9
oklch(55.5% 0.132 242.1)
-
Step 700
700
#00679D
oklch(49.2% 0.117 242)
-
Step 800
800
#005481
oklch(42.7% 0.101 241.9)
-
Step 900
900
#00466D
oklch(37.8% 0.09 242.2)
-
Step 950
950
#002943
oklch(27% 0.065 242.6)
#B4DEFF 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) | #D0DDFF | 0.034 |
| Deuteranopia (no green cones) | #C7D5FE | 0.031 |
| Tritanopia (no blue cones) | #9DE6E9 | 0.051 |
| Achromatopsia (no color) | #D9D9D9 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4DEFF
#B4DEFF
oklch(88.2% 0.063 242.1)
- #F7CFAE
#F7CFAE
oklch(88.1% 0.063 61.4)
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 #B4DEFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.037
- Powder Blue #B0E0E6 ΔE 0.038
- Baby Blue #A2CFFE ΔE 0.047
- Celeste #A8DADC ΔE 0.051
- Diamond #B9F2FF ΔE 0.054
- Robin's Egg Blue #98EFF9 ΔE 0.055
- Cadet Gray #CED4DA ΔE 0.055
- Pale Turquoise #AFEEEE ΔE 0.056
Use #B4DEFF 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.