#2857BC#2857BC

#2857BC is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.5% C 0.168 H 262.9°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#2857BC
RGB	rgb(40, 87, 188)
HSL	hsl(221, 65%, 45%)
HSV	hsv(221, 79%, 74%)
CMYK	cmyk(78.7%, 53.7%, 0%, 26.3%)
CIE-LAB	lab(39.41, 21.13, -57.70)
CIE-LCH	lch(39.41, 61.45, 290.12°)
OKLab	oklab(48.5% -0.0207 -0.1663)
OKLCH	oklch(48.5% 0.168 262.9)
XYZ	xyz(13.3571, 10.8968, 48.9665)
Luminance	0.1090 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2857BC #BC8D28

analogous

#28A1BC #2857BC #4328BC

triadic

#2857BC #BC2857 #57BC28

tetradic

#2857BC #BC28A1 #BC8D28 #28BC43

square

#2857BC #BC28A1 #BC8D28 #28BC43

split-complementary

#2857BC #BC4328 #A1BC28

monochromatic

#132857 #1D408A #2857BC #4976D8 #7B9CE3

Accessibility & contrast

On white

6.60

#2857BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#2857BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2857BC

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2857BC	#FFFFFF	#000000	##FFFFFF
##2857BC	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0264C0

Deuteranopia (green-blind)

#0056BA

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2857bc;
/* rgb */ color: rgb(40, 87, 188);
/* oklch */ color: oklch(48.5% 0.168 262.9);

Tailwind

colors: {
  custom: {
    50: '#7985d1',
    500: '#2857bc',
    950: '#000000',
  },
}

SCSS

$custom: #2857bc;
$custom-light: #7985d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2857bc",
  "rgb": {
    "r": 40,
    "g": 87,
    "b": 188
  },
  "hsl": {
    "h": 220.946,
    "s": 64.912,
    "l": 44.706
  },
  "oklch": {
    "l": 0.48503,
    "c": 0.16763,
    "h": 262.9
  },
  "luminance": 0.10898
}

Semantic roles & 50–950 ramp

primary

#2857BC

secondary

#CBB075

accent

#B340E8

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #2857BC

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

Preview Lab → · Contrast checker → · Palette generator →