#2857B7#2857B7

#2857B7 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.1% C 0.161 H 262.4°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#2857B7
RGB	rgb(40, 87, 183)
HSL	hsl(220, 64%, 44%)
HSV	hsv(220, 78%, 72%)
CMYK	cmyk(78.1%, 52.5%, 0%, 28.2%)
CIE-LAB	lab(39.04, 19.21, -55.36)
CIE-LCH	lch(39.04, 58.60, 289.14°)
OKLab	oklab(48.11% -0.0212 -0.1595)
OKLCH	oklch(48.11% 0.161 262.4)
XYZ	xyz(12.8274, 10.6849, 46.1769)
Luminance	0.1069 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2857B7 #B78828

analogous

#289EB7 #2857B7 #4028B7

triadic

#2857B7 #B72857 #57B728

tetradic

#2857B7 #B7289E #B78828 #28B740

square

#2857B7 #B7289E #B78828 #28B740

split-complementary

#2857B7 #B74028 #9EB728

monochromatic

#122753 #1D3F85 #2857B7 #4675D6 #789BE1

Accessibility & contrast

On white

6.69

#2857B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#2857B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2857B7

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2857B7	#FFFFFF	#000000	##FFFFFF
##2857B7	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1363BA

Deuteranopia (green-blind)

#0056B5

Tritanopia (blue-blind)

#006E7E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2857b7;
/* rgb */ color: rgb(40, 87, 183);
/* oklch */ color: oklch(48.1% 0.161 262.4);

Tailwind

colors: {
  custom: {
    50: '#7885cd',
    500: '#2857b7',
    950: '#000000',
  },
}

SCSS

$custom: #2857b7;
$custom-light: #7885cd;
$custom-dark: #000000;

JSON

{
  "hex": "#2857b7",
  "rgb": {
    "r": 40,
    "g": 87,
    "b": 183
  },
  "hsl": {
    "h": 220.28,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.48114,
    "c": 0.16086,
    "h": 262.4
  },
  "luminance": 0.10686
}

Semantic roles & 50–950 ramp

primary

#2857B7

secondary

#C9AC72

accent

#B041E7

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B14

muted

#7C7C82

Preview Lab

Preview with #2857B7

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

Preview Lab → · Contrast checker → · Palette generator →