#2C51B3#2C51B3

#2C51B3 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.7% C 0.162 H 265.0°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#2C51B3
RGB	rgb(44, 81, 179)
HSL	hsl(224, 61%, 44%)
HSV	hsv(224, 75%, 70%)
CMYK	cmyk(75.4%, 54.7%, 0%, 29.8%)
CIE-LAB	lab(37.25, 22.10, -55.90)
CIE-LCH	lch(37.25, 60.12, 291.57°)
OKLab	oklab(46.7% -0.014 -0.1611)
OKLCH	oklch(46.7% 0.162 265)
XYZ	xyz(12.1149, 9.6737, 43.8678)
Luminance	0.0968 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C51B3 #B38E2C

analogous

#2C94B3 #2C51B3 #4B2CB3

triadic

#2C51B3 #B32C51 #51B32C

tetradic

#2C51B3 #B32C94 #B38E2C #2CB34B

square

#2C51B3 #B32C94 #B38E2C #2CB34B

split-complementary

#2C51B3 #B34B2C #94B32C

monochromatic

#142551 #203B82 #2C51B3 #4A6FD2 #7B96DF

Accessibility & contrast

On white

7.16

#2C51B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#2C51B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2C51B3

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C51B3	#FFFFFF	#000000	##FFFFFF
##2C51B3	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EB6

Deuteranopia (green-blind)

#0052B1

Tritanopia (blue-blind)

#00697A

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2c51b3;
/* rgb */ color: rgb(44, 81, 179);
/* oklch */ color: oklch(46.7% 0.162 265.0);

Tailwind

colors: {
  custom: {
    50: '#7981ca',
    500: '#2c51b3',
    950: '#000000',
  },
}

SCSS

$custom: #2c51b3;
$custom-light: #7981ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2c51b3",
  "rgb": {
    "r": 44,
    "g": 81,
    "b": 179
  },
  "hsl": {
    "h": 223.556,
    "s": 60.538,
    "l": 43.725
  },
  "oklch": {
    "l": 0.46703,
    "c": 0.1617,
    "h": 265
  },
  "luminance": 0.09675
}

Semantic roles & 50–950 ramp

primary

#2C51B3

secondary

#C7B074

accent

#B844E4

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2C51B3

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

Preview Lab → · Contrast checker → · Palette generator →