#2857BB#2857BB

#2857BB is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.4% C 0.166 H 262.8°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#2857BB
RGB	rgb(40, 87, 187)
HSL	hsl(221, 65%, 45%)
HSV	hsv(221, 79%, 73%)
CMYK	cmyk(78.6%, 53.5%, 0%, 26.7%)
CIE-LAB	lab(39.33, 20.75, -57.24)
CIE-LCH	lch(39.33, 60.88, 289.93°)
OKLab	oklab(48.43% -0.0207 -0.165)
OKLCH	oklch(48.43% 0.166 262.8)
XYZ	xyz(13.2497, 10.8538, 48.4008)
Luminance	0.1085 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2857BB #BB8C28

analogous

#28A1BB #2857BB #4228BB

triadic

#2857BB #BB2857 #57BB28

tetradic

#2857BB #BB28A1 #BB8C28 #28BB42

square

#2857BB #BB28A1 #BB8C28 #28BB42

split-complementary

#2857BB #BB4228 #A1BB28

monochromatic

#122856 #1D4089 #2857BB #4876D8 #7B9CE3

Accessibility & contrast

On white

6.62

#2857BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#2857BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2857BB

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2857BB	#FFFFFF	#000000	##FFFFFF
##2857BB	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0664BF

Deuteranopia (green-blind)

#0056B9

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2857bb;
/* rgb */ color: rgb(40, 87, 187);
/* oklch */ color: oklch(48.4% 0.166 262.8);

Tailwind

colors: {
  custom: {
    50: '#7985d0',
    500: '#2857bb',
    950: '#000000',
  },
}

SCSS

$custom: #2857bb;
$custom-light: #7985d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2857bb",
  "rgb": {
    "r": 40,
    "g": 87,
    "b": 187
  },
  "hsl": {
    "h": 220.816,
    "s": 64.758,
    "l": 44.51
  },
  "oklch": {
    "l": 0.48425,
    "c": 0.16628,
    "h": 262.8
  },
  "luminance": 0.10855
}

Semantic roles & 50–950 ramp

primary

#2857BB

secondary

#CBAF74

accent

#B240E8

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #2857BB

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

Preview Lab → · Contrast checker → · Palette generator →