#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
RGBrgb(177, 181, 250)
HSLhsl(237, 88%, 84%)
HSVhsv(237, 29%, 98%)
CMYKcmyk(29.2%, 27.6%, 0%, 2%)
CIE-LABlab(75.63, 13.71, -34.59)
CIE-LCHlch(75.63, 37.21, 291.63°)
OKLaboklab(79.51% 0.0192 -0.0958)
OKLCHoklch(79.51% 0.098 281.4)
XYZxyz(51.9061, 49.2956, 97.2042)
Luminance0.4930 (WCAG relative)
Temperaturecool
Familyblue

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
##B1B5FA1.001.9310.8610.86
#FFFFFF1.931.0021.0021.00
#00000010.8621.001.001.00
##00000010.8621.001.001.00

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 →

#B1B5FA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva