#B1CFEF
Closest named color: Light Blue Grey (#B7C9E2). oklch(84.3% 0.055 250.2), rgb(177, 207, 239).
Aa
Black text reads best on this color (13.04:1).
About this color
#B1CFEF is a light, muted blue. In OKLCH its lightness is 84%, its chroma 0.055 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.020 away. Black text reads best on it, at 13.04:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 13.04:1 |
| White text | 1.61:1 |
Values
| HEX | #B1CFEF |
| RGB | rgb(177, 207, 239) |
| HSL | hsl(211, 66%, 82%) |
| OKLCH | oklch(84.3% 0.055 250.2) |
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 #B1CFEF | 1.61:1 | Fails | Lc -30.9 | Non-text elements, placeholder text |
| Black text on #B1CFEF | 13.04:1 | AAA | Lc 76.4 | Fine for body text |
| #B1CFEF text on white | 1.61:1 | Fails | Lc 27.4 | Dividers and decoration only |
| #B1CFEF text on black | 13.04:1 | AAA | Lc -75.5 | 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
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CADBED
oklch(88.4% 0.031 249.7)
-
Step 300
300 (this color)
#B1CFEF
oklch(84.3% 0.055 250.2)
-
Step 400
400
#76A5D6
oklch(70.7% 0.088 250.2)
-
Step 500
500
#508ECB
oklch(63.2% 0.113 249.7)
-
Step 600
600
#3277B8
oklch(55.7% 0.123 249.9)
-
Step 700
700
#24639F
oklch(49% 0.115 250.6)
-
Step 800
800
#205180
oklch(42.6% 0.094 250.2)
-
Step 900
900
#204467
oklch(37.8% 0.073 249.8)
-
Step 950
950
#14283C
oklch(27.1% 0.046 249.9)
#B1CFEF 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) | #C3CFF1 | 0.023 |
| Deuteranopia (no green cones) | #BCC9EE | 0.019 |
| Tritanopia (no blue cones) | #A0D6D9 | 0.047 |
| Achromatopsia (no color) | #CCCCCC | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1CFEF
#B1CFEF
oklch(84.3% 0.055 250.2)
- #E3C6A5
#E3C6A5
oklch(84.3% 0.055 70.6)
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 #B1CFEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.020
- Baby Blue #A2CFFE ΔE 0.026
- Light Blue #ADD8E6 ΔE 0.031
- Light Steel Blue #B0C4DE ΔE 0.032
- Light Periwinkle #C1C6FC ΔE 0.039
- Cloudy Blue #ACC2D9 ΔE 0.041
- Celeste #A8DADC ΔE 0.047
- Sky Blue #87CEEB ΔE 0.048
Use #B1CFEF 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.