#B1C5EA
Closest named color: Light Steel Blue (#B0C4DE). oklch(82.1% 0.057 262.7), rgb(177, 197, 234).
Aa
Black text reads best on this color (12.04:1).
About this color
#B1C5EA is a light, muted blue. In OKLCH its lightness is 82%, its chroma 0.057 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.017 away. Black text reads best on it, at 12.04:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 12.04:1 |
| White text | 1.74:1 |
Values
| HEX | #B1C5EA |
| RGB | rgb(177, 197, 234) |
| HSL | hsl(219, 58%, 81%) |
| OKLCH | oklch(82.1% 0.057 262.7) |
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 #B1C5EA | 1.74:1 | Fails | Lc -35.6 | Non-text elements, placeholder text |
| Black text on #B1C5EA | 12.04:1 | AAA | Lc 72.1 | Content text, not long reading |
| #B1C5EA text on white | 1.74:1 | Fails | Lc 31.7 | Non-text elements, placeholder text |
| #B1C5EA text on black | 12.04:1 | AAA | Lc -71.0 | 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
#F3F6FB
oklch(97.2% 0.007 260.7)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CEDAEF
oklch(88.6% 0.032 261.7)
-
Step 300
300 (this color)
#B1C5EA
oklch(82.1% 0.057 262.7)
-
Step 400
400
#82A1DA
oklch(70.8% 0.091 262.2)
-
Step 500
500
#6388D0
oklch(63.1% 0.117 262.8)
-
Step 600
600
#4A71BD
oklch(55.7% 0.126 262.5)
-
Step 700
700
#3C5EA3
oklch(49.1% 0.118 263)
-
Step 800
800
#314D84
oklch(42.7% 0.098 262.6)
-
Step 900
900
#2C416A
oklch(37.9% 0.075 262.7)
-
Step 950
950
#1A263E
oklch(27% 0.048 263.3)
#B1C5EA 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) | #B9C7EC | 0.012 |
| Deuteranopia (no green cones) | #B4C2E9 | 0.008 |
| Tritanopia (no blue cones) | #A2CCD1 | 0.050 |
| Achromatopsia (no color) | #C4C4C4 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1C5EA
#B1C5EA
oklch(82.1% 0.057 262.7)
- #D7C29B
#D7C29B
oklch(82.2% 0.057 82.9)
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 #B1C5EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.017
- Light Blue Grey #B7C9E2 ΔE 0.020
- Cloudy Blue #ACC2D9 ΔE 0.025
- Light Periwinkle #C1C6FC ΔE 0.034
- Baby Blue #A2CFFE ΔE 0.034
- Pastel Blue #A2BFFE ΔE 0.041
- Light Cornflower Blue #98C1D9 ΔE 0.042
- Light Grey Blue #9DBCD4 ΔE 0.046
Use #B1C5EA 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.