#2E51B4#2E51B4

#2E51B4 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 46.9% C 0.163 H 265.7°. Best body text is #FFFFFF at 7.11:1 contrast (WCAG AA passes).

Color values

HEX	#2E51B4
RGB	rgb(46, 81, 180)
HSL	hsl(224, 59%, 44%)
HSV	hsv(224, 74%, 71%)
CMYK	cmyk(74.4%, 55%, 0%, 29.4%)
CIE-LAB	lab(37.41, 22.73, -56.24)
CIE-LCH	lch(37.41, 60.66, 292.01°)
OKLab	oklab(46.87% -0.0123 -0.162)
OKLCH	oklch(46.87% 0.163 265.7)
XYZ	xyz(12.3045, 9.7597, 44.4065)
Luminance	0.0976 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2E51B4 #B4912E

analogous

#2E94B4 #2E51B4 #4E2EB4

triadic

#2E51B4 #B42E51 #51B42E

tetradic

#2E51B4 #B42E94 #B4912E #2EB44E

square

#2E51B4 #B42E94 #B4912E #2EB44E

split-complementary

#2E51B4 #B44E2E #94B42E

monochromatic

#152553 #223B83 #2E51B4 #4E70D2 #7E97DE

Accessibility & contrast

On white

7.11

#2E51B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#2E51B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2E51B4

7.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2E51B4	#FFFFFF	#000000	##FFFFFF
##2E51B4	1.00	7.11	2.95	7.11
#FFFFFF	7.11	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EB7

Deuteranopia (green-blind)

#0052B2

Tritanopia (blue-blind)

#00697A

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2e51b4;
/* rgb */ color: rgb(46, 81, 180);
/* oklch */ color: oklch(46.9% 0.163 265.7);

Tailwind

colors: {
  custom: {
    50: '#7a81cb',
    500: '#2e51b4',
    950: '#000000',
  },
}

SCSS

$custom: #2e51b4;
$custom-light: #7a81cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2e51b4",
  "rgb": {
    "r": 46,
    "g": 81,
    "b": 180
  },
  "hsl": {
    "h": 224.328,
    "s": 59.292,
    "l": 44.314
  },
  "oklch": {
    "l": 0.46868,
    "c": 0.1625,
    "h": 265.7
  },
  "luminance": 0.09761
}

Semantic roles & 50–950 ramp

primary

#2E51B4

secondary

#C7B277

accent

#B945E2

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2E51B4

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

Preview Lab → · Contrast checker → · Palette generator →