#B1DDFA
Closest named color: Light Blue (#ADD8E6). oklch(87.6% 0.061 237.3), rgb(177, 221, 250).
Aa
Black text reads best on this color (14.59:1).
About this color
#B1DDFA is a light, muted blue. In OKLCH its lightness is 88%, its chroma 0.061 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.029 away. Black text reads best on it, at 14.59:1.
| Hue family | Blues |
| Lightness | light (88%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 14.59:1 |
| White text | 1.43:1 |
Values
| HEX | #B1DDFA |
| RGB | rgb(177, 221, 250) |
| HSL | hsl(204, 88%, 84%) |
| OKLCH | oklch(87.6% 0.061 237.3) |
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 #B1DDFA | 1.43:1 | Fails | Lc -23.9 | Dividers and decoration only |
| Black text on #B1DDFA | 14.59:1 | AAA | Lc 82.7 | Fine for body text |
| #B1DDFA text on white | 1.43:1 | Fails | Lc 21.0 | Dividers and decoration only |
| #B1DDFA text on black | 14.59:1 | AAA | Lc -82.4 | 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
#DCEDF7
oklch(93.6% 0.023 233.4)
-
Step 200
200 (this color)
#B1DDFA
oklch(87.6% 0.061 237.3)
-
Step 300
300
#90C9ED
oklch(80.9% 0.078 236.7)
-
Step 400
400
#45ABE5
oklch(70.7% 0.126 237.5)
-
Step 500
500
#0094D2
oklch(63.2% 0.138 237.1)
-
Step 600
600
#007CB1
oklch(55.6% 0.122 237.2)
-
Step 700
700
#006896
oklch(49.1% 0.108 237.6)
-
Step 800
800
#00557C
oklch(42.7% 0.094 237.9)
-
Step 900
900
#004768
oklch(37.7% 0.083 237.5)
-
Step 950
950
#002A40
oklch(27% 0.06 237.8)
#B1DDFA 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) | #D0DCFC | 0.038 |
| Deuteranopia (no green cones) | #C6D3FA | 0.035 |
| Tritanopia (no blue cones) | #9BE4E6 | 0.046 |
| Achromatopsia (no color) | #D7D7D7 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1DDFA
#B1DDFA
oklch(87.6% 0.061 237.3)
- #F6CDB0
#F6CDB0
oklch(87.6% 0.061 57.1)
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 #B1DDFA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.029
- Powder Blue #B0E0E6 ΔE 0.032
- Celeste #A8DADC ΔE 0.044
- Baby Blue #A2CFFE ΔE 0.045
- Cadet Gray #CED4DA ΔE 0.051
- Robin's Egg Blue #98EFF9 ΔE 0.053
- Light Blue Grey #B7C9E2 ΔE 0.053
- Pale Turquoise #AFEEEE ΔE 0.054
Use #B1DDFA 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.