#B1CDEB
Closest named color: Light Blue Grey (#B7C9E2). oklch(83.8% 0.052 250.2), rgb(177, 205, 235).
Aa
Black text reads best on this color (12.80:1).
About this color
#B1CDEB is a light, muted blue. In OKLCH its lightness is 84%, its chroma 0.052 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.015 away. Black text reads best on it, at 12.80:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 12.80:1 |
| White text | 1.64:1 |
Values
| HEX | #B1CDEB |
| RGB | rgb(177, 205, 235) |
| HSL | hsl(211, 59%, 81%) |
| OKLCH | oklch(83.8% 0.052 250.2) |
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 #B1CDEB | 1.64:1 | Fails | Lc -32.1 | Non-text elements, placeholder text |
| Black text on #B1CDEB | 12.80:1 | AAA | Lc 75.4 | Fine for body text |
| #B1CDEB text on white | 1.64:1 | Fails | Lc 28.4 | Dividers and decoration only |
| #B1CDEB text on black | 12.80:1 | AAA | Lc -74.5 | Content text, not long reading |
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
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CBDBEC
oklch(88.5% 0.029 249.8)
-
Step 300
300 (this color)
#B1CDEB
oklch(83.8% 0.052 250.2)
-
Step 400
400
#79A5D3
oklch(70.8% 0.083 250.2)
-
Step 500
500
#558EC7
oklch(63.2% 0.105 249.8)
-
Step 600
600
#3877B4
oklch(55.7% 0.115 250)
-
Step 700
700
#2A649B
oklch(49.2% 0.107 249.9)
-
Step 800
800
#24517E
oklch(42.6% 0.09 250.8)
-
Step 900
900
#234465
oklch(37.8% 0.069 250.1)
-
Step 950
950
#15283B
oklch(27.1% 0.044 249.7)
#B1CDEB 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) | #C2CDED | 0.022 |
| Deuteranopia (no green cones) | #BBC7EA | 0.019 |
| Tritanopia (no blue cones) | #A1D4D7 | 0.044 |
| Achromatopsia (no color) | #CACACA | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1CDEB
#B1CDEB
oklch(83.8% 0.052 250.2)
- #E0C5A6
#E0C5A6
oklch(83.8% 0.052 70.9)
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 #B1CDEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.015
- Light Steel Blue #B0C4DE ΔE 0.026
- Baby Blue #A2CFFE ΔE 0.030
- Light Blue #ADD8E6 ΔE 0.033
- Cloudy Blue #ACC2D9 ΔE 0.035
- Light Periwinkle #C1C6FC ΔE 0.041
- Sky Blue #87CEEB ΔE 0.047
- Celeste #A8DADC ΔE 0.048
Use #B1CDEB 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.