#B1B5FA#B1B5FA

#B1B5FA is a light, moderate blue. Relative luminance 0.493; OKLCH L 79.5% C 0.098 H 281.4°. Best body text is #000000 at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#B1B5FA
RGB	rgb(177, 181, 250)
HSL	hsl(237, 88%, 84%)
HSV	hsv(237, 29%, 98%)
CMYK	cmyk(29.2%, 27.6%, 0%, 2%)
CIE-LAB	lab(75.63, 13.71, -34.59)
CIE-LCH	lch(75.63, 37.21, 291.63°)
OKLab	oklab(79.51% 0.0192 -0.0958)
OKLCH	oklch(79.51% 0.098 281.4)
XYZ	xyz(51.9061, 49.2956, 97.2042)
Luminance	0.4930 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1B5FA #FAF6B1

analogous

#B1D9FA #B1B5FA #D1B1FA

triadic

#B1B5FA #FAB1B5 #B5FAB1

tetradic

#B1B5FA #FAB1D9 #FAF6B1 #B1FAD1

square

#B1B5FA #FAB1D9 #FAF6B1 #B1FAD1

split-complementary

#B1B5FA #FAD1B1 #D9FAB1

monochromatic

#3E48F3 #777EF6 #B1B5FA #E2E4FD #E2E4FD

Accessibility & contrast

On white

1.93

#B1B5FA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.86

#B1B5FA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1B5FA

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1B5FA	#FFFFFF	#000000	##000000
##B1B5FA	1.00	1.93	10.86	10.86
#FFFFFF	1.93	1.00	21.00	21.00
#000000	10.86	21.00	1.00	1.00
##000000	10.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1BDFD

Deuteranopia (green-blind)

#9EB8F8

Tritanopia (blue-blind)

#9FC2CD

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #b1b5fa;
/* rgb */ color: rgb(177, 181, 250);
/* oklch */ color: oklch(79.5% 0.098 281.4);

Tailwind

colors: {
  custom: {
    50: '#cacbfc',
    500: '#b1b5fa',
    950: '#000000',
  },
}

SCSS

$custom: #b1b5fa;
$custom-light: #cacbfc;
$custom-dark: #000000;

JSON

{
  "hex": "#b1b5fa",
  "rgb": {
    "r": 177,
    "g": 181,
    "b": 250
  },
  "hsl": {
    "h": 236.712,
    "s": 87.952,
    "l": 83.725
  },
  "oklch": {
    "l": 0.79506,
    "c": 0.0977,
    "h": 281.4
  },
  "luminance": 0.49297
}

Semantic roles & 50–950 ramp

primary

#B1B5FA

secondary

#F5F3D6

accent

#D801E5

background

#FCFCFF

surface

#F8F8FF

border

#D1D1D7

text

#131317

muted

#828285

Preview Lab

Preview with #B1B5FA

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →