#B1CFEB
Closest named color: Light Blue Grey (#B7C9E2). oklch(84.2% 0.051 246.6), rgb(177, 207, 235).
Aa
Black text reads best on this color (12.99:1).
About this color
#B1CFEB is a light, muted blue. In OKLCH its lightness is 84%, its chroma 0.051 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.017 away. Black text reads best on it, at 12.99:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 12.99:1 |
| White text | 1.61:1 |
Values
| HEX | #B1CFEB |
| RGB | rgb(177, 207, 235) |
| HSL | hsl(209, 59%, 81%) |
| OKLCH | oklch(84.2% 0.051 246.6) |
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 #B1CFEB | 1.61:1 | Fails | Lc -31.2 | Non-text elements, placeholder text |
| Black text on #B1CFEB | 12.99:1 | AAA | Lc 76.2 | Fine for body text |
| #B1CFEB text on white | 1.61:1 | Fails | Lc 27.6 | Dividers and decoration only |
| #B1CFEB text on black | 12.99:1 | AAA | Lc -75.3 | 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 300.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CBDBEB
oklch(88.4% 0.028 248.1)
-
Step 300
300 (this color)
#B1CFEB
oklch(84.2% 0.051 246.6)
-
Step 400
400
#76A6D1
oklch(70.7% 0.082 246.3)
-
Step 500
500
#518FC5
oklch(63.1% 0.104 246.6)
-
Step 600
600
#3378B1
oklch(55.5% 0.113 246.7)
-
Step 700
700
#256598
oklch(49.1% 0.104 246.4)
-
Step 800
800
#20527C
oklch(42.6% 0.088 247.2)
-
Step 900
900
#204463
oklch(37.5% 0.068 246.8)
-
Step 950
950
#14283A
oklch(26.9% 0.043 247.2)
#B1CFEB 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) | #C4CFEC | 0.024 |
| Deuteranopia (no green cones) | #BDC9EA | 0.020 |
| Tritanopia (no blue cones) | #A1D6D8 | 0.043 |
| Achromatopsia (no color) | #CBCBCB | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1CFEB
#B1CFEB
oklch(84.2% 0.051 246.6)
- #E2C5A9
#E2C5A9
oklch(84.1% 0.05 66.1)
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 #B1CFEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.017
- Light Blue #ADD8E6 ΔE 0.027
- Light Steel Blue #B0C4DE ΔE 0.030
- Baby Blue #A2CFFE ΔE 0.031
- Cloudy Blue #ACC2D9 ΔE 0.038
- Celeste #A8DADC ΔE 0.043
- Light Periwinkle #C1C6FC ΔE 0.044
- Sky Blue #87CEEB ΔE 0.047
Use #B1CFEB 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.