#2C57B5#2C57B5

#2C57B5 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.1% C 0.157 H 263.2°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#2C57B5
RGB	rgb(44, 87, 181)
HSL	hsl(221, 61%, 44%)
HSV	hsv(221, 76%, 71%)
CMYK	cmyk(75.7%, 51.9%, 0%, 29%)
CIE-LAB	lab(39.05, 18.91, -54.17)
CIE-LCH	lch(39.05, 57.38, 289.24°)
OKLab	oklab(48.11% -0.0185 -0.1559)
OKLCH	oklch(48.11% 0.157 263.2)
XYZ	xyz(12.7844, 10.6866, 45.0961)
Luminance	0.1069 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C57B5 #B58A2C

analogous

#2C9CB5 #2C57B5 #462CB5

triadic

#2C57B5 #B52C57 #57B52C

tetradic

#2C57B5 #B52C9C #B58A2C #2CB546

square

#2C57B5 #B52C9C #B58A2C #2CB546

split-complementary

#2C57B5 #B5462C #9CB52C

monochromatic

#142853 #203F84 #2C57B5 #4B76D3 #7C9BDF

Accessibility & contrast

On white

6.69

#2C57B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#2C57B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2C57B5

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C57B5	#FFFFFF	#000000	##FFFFFF
##2C57B5	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)

#1963B8

Deuteranopia (green-blind)

#0056B3

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2c57b5;
/* rgb */ color: rgb(44, 87, 181);
/* oklch */ color: oklch(48.1% 0.157 263.2);

Tailwind

colors: {
  custom: {
    50: '#7985cc',
    500: '#2c57b5',
    950: '#000000',
  },
}

SCSS

$custom: #2c57b5;
$custom-light: #7985cc;
$custom-dark: #000000;

JSON

{
  "hex": "#2c57b5",
  "rgb": {
    "r": 44,
    "g": 87,
    "b": 181
  },
  "hsl": {
    "h": 221.168,
    "s": 60.889,
    "l": 44.118
  },
  "oklch": {
    "l": 0.48112,
    "c": 0.15699,
    "h": 263.2
  },
  "luminance": 0.10688
}

Semantic roles & 50–950 ramp

primary

#2C57B5

secondary

#C8AE75

accent

#B244E4

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2C57B5

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

Preview Lab → · Contrast checker → · Palette generator →