#2C51B0#2C51B0

#2C51B0 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.5% C 0.158 H 264.8°. Best body text is #FFFFFF at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#2C51B0
RGB	rgb(44, 81, 176)
HSL	hsl(223, 60%, 43%)
HSV	hsv(223, 75%, 69%)
CMYK	cmyk(75%, 54%, 0%, 31%)
CIE-LAB	lab(37.03, 20.96, -54.49)
CIE-LCH	lch(37.03, 58.38, 291.04°)
OKLab	oklab(46.47% -0.0142 -0.1569)
OKLCH	oklch(46.47% 0.158 264.8)
XYZ	xyz(11.8148, 9.5536, 42.2872)
Luminance	0.0955 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C51B0 #B08B2C

analogous

#2C93B0 #2C51B0 #492CB0

triadic

#2C51B0 #B02C51 #51B02C

tetradic

#2C51B0 #B02C93 #B08B2C #2CB049

square

#2C51B0 #B02C93 #B08B2C #2CB049

split-complementary

#2C51B0 #B0492C #93B02C

monochromatic

#14244E #203A7F #2C51B0 #486ED1 #7995DD

Accessibility & contrast

On white

7.21

#2C51B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#2C51B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2C51B0

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C51B0	#FFFFFF	#000000	##FFFFFF
##2C51B0	1.00	7.21	2.91	7.21
#FFFFFF	7.21	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#055DB3

Deuteranopia (green-blind)

#0051AE

Tritanopia (blue-blind)

#006878

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #2c51b0;
/* rgb */ color: rgb(44, 81, 176);
/* oklch */ color: oklch(46.5% 0.158 264.8);

Tailwind

colors: {
  custom: {
    50: '#7881c8',
    500: '#2c51b0',
    950: '#000000',
  },
}

SCSS

$custom: #2c51b0;
$custom-light: #7881c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2c51b0",
  "rgb": {
    "r": 44,
    "g": 81,
    "b": 176
  },
  "hsl": {
    "h": 223.182,
    "s": 60,
    "l": 43.137
  },
  "oklch": {
    "l": 0.46466,
    "c": 0.15758,
    "h": 264.8
  },
  "luminance": 0.09555
}

Semantic roles & 50–950 ramp

primary

#2C51B0

secondary

#C6AE72

accent

#B745E3

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2C51B0

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

Preview Lab → · Contrast checker → · Palette generator →