#2E51AB#2E51AB

#2E51AB is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.2% C 0.150 H 265.0°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#2E51AB
RGB	rgb(46, 81, 171)
HSL	hsl(223, 58%, 43%)
HSV	hsv(223, 73%, 67%)
CMYK	cmyk(73.1%, 52.6%, 0%, 32.9%)
CIE-LAB	lab(36.75, 19.32, -51.97)
CIE-LCH	lch(36.75, 55.45, 290.40°)
OKLab	oklab(46.17% -0.013 -0.1495)
OKLCH	oklch(46.17% 0.15 265)
XYZ	xyz(11.4172, 9.4048, 39.7338)
Luminance	0.0941 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2E51AB #AB882E

analogous

#2E90AB #2E51AB #492EAB

triadic

#2E51AB #AB2E51 #51AB2E

tetradic

#2E51AB #AB2E90 #AB882E #2EAB49

square

#2E51AB #AB2E90 #AB882E #2EAB49

split-complementary

#2E51AB #AB492E #90AB2E

monochromatic

#14234B #213A7B #2E51AB #486ECE #7994DB

Accessibility & contrast

On white

7.29

#2E51AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#2E51AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2E51AB

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2E51AB	#FFFFFF	#000000	##FFFFFF
##2E51AB	1.00	7.29	2.88	7.29
#FFFFFF	7.29	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#155CAE

Deuteranopia (green-blind)

#0051A9

Tritanopia (blue-blind)

#006776

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #2e51ab;
/* rgb */ color: rgb(46, 81, 171);
/* oklch */ color: oklch(46.2% 0.150 265.0);

Tailwind

colors: {
  custom: {
    50: '#7881c5',
    500: '#2e51ab',
    950: '#000000',
  },
}

SCSS

$custom: #2e51ab;
$custom-light: #7881c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2e51ab",
  "rgb": {
    "r": 46,
    "g": 81,
    "b": 171
  },
  "hsl": {
    "h": 223.2,
    "s": 57.604,
    "l": 42.549
  },
  "oklch": {
    "l": 0.46165,
    "c": 0.15006,
    "h": 265
  },
  "luminance": 0.09406
}

Semantic roles & 50–950 ramp

primary

#2E51AB

secondary

#C3AC72

accent

#B647E1

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2E51AB

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

Preview Lab → · Contrast checker → · Palette generator →