#2857B9#2857B9

#2857B9 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.3% C 0.164 H 262.6°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#2857B9
RGB	rgb(40, 87, 185)
HSL	hsl(221, 64%, 44%)
HSV	hsv(221, 78%, 73%)
CMYK	cmyk(78.4%, 53%, 0%, 27.5%)
CIE-LAB	lab(39.19, 19.98, -56.30)
CIE-LCH	lch(39.19, 59.74, 289.54°)
OKLab	oklab(48.27% -0.0209 -0.1622)
OKLCH	oklch(48.27% 0.164 262.6)
XYZ	xyz(13.0371, 10.7688, 47.2810)
Luminance	0.1077 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2857B9 #B98A28

analogous

#28A0B9 #2857B9 #4228B9

triadic

#2857B9 #B92857 #57B928

tetradic

#2857B9 #B928A0 #B98A28 #28B942

square

#2857B9 #B928A0 #B98A28 #28B942

split-complementary

#2857B9 #B94228 #A0B928

monochromatic

#122854 #1D3F87 #2857B9 #4776D7 #799BE2

Accessibility & contrast

On white

6.66

#2857B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#2857B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2857B9

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2857B9	#FFFFFF	#000000	##FFFFFF
##2857B9	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D63BC

Deuteranopia (green-blind)

#0056B7

Tritanopia (blue-blind)

#006F7F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2857b9;
/* rgb */ color: rgb(40, 87, 185);
/* oklch */ color: oklch(48.3% 0.164 262.6);

Tailwind

colors: {
  custom: {
    50: '#7885cf',
    500: '#2857b9',
    950: '#000000',
  },
}

SCSS

$custom: #2857b9;
$custom-light: #7885cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2857b9",
  "rgb": {
    "r": 40,
    "g": 87,
    "b": 185
  },
  "hsl": {
    "h": 220.552,
    "s": 64.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.48269,
    "c": 0.16357,
    "h": 262.6
  },
  "luminance": 0.1077
}

Semantic roles & 50–950 ramp

primary

#2857B9

secondary

#CAAE73

accent

#B140E7

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B14

muted

#7C7C82

Preview Lab

Preview with #2857B9

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

Preview Lab → · Contrast checker → · Palette generator →