#2E51B3#2E51B3

#2E51B3 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.8% C 0.161 H 265.6°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#2E51B3
RGB	rgb(46, 81, 179)
HSL	hsl(224, 59%, 44%)
HSV	hsv(224, 74%, 70%)
CMYK	cmyk(74.3%, 54.7%, 0%, 29.8%)
CIE-LAB	lab(37.33, 22.35, -55.77)
CIE-LCH	lch(37.33, 60.08, 291.84°)
OKLab	oklab(46.79% -0.0123 -0.1607)
OKLCH	oklch(46.79% 0.161 265.6)
XYZ	xyz(12.2030, 9.7191, 43.8719)
Luminance	0.0972 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2E51B3 #B3902E

analogous

#2E94B3 #2E51B3 #4E2EB3

triadic

#2E51B3 #B32E51 #51B32E

tetradic

#2E51B3 #B32E94 #B3902E #2EB34E

square

#2E51B3 #B32E94 #B3902E #2EB34E

split-complementary

#2E51B3 #B34E2E #94B32E

monochromatic

#152552 #213B82 #2E51B3 #4D70D1 #7E97DE

Accessibility & contrast

On white

7.13

#2E51B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#2E51B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2E51B3

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2E51B3	#FFFFFF	#000000	##FFFFFF
##2E51B3	1.00	7.13	2.94	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.13	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: #2e51b3;
/* rgb */ color: rgb(46, 81, 179);
/* oklch */ color: oklch(46.8% 0.161 265.6);

Tailwind

colors: {
  custom: {
    50: '#7981ca',
    500: '#2e51b3',
    950: '#000000',
  },
}

SCSS

$custom: #2e51b3;
$custom-light: #7981ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2e51b3",
  "rgb": {
    "r": 46,
    "g": 81,
    "b": 179
  },
  "hsl": {
    "h": 224.211,
    "s": 59.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.46789,
    "c": 0.16113,
    "h": 265.6
  },
  "luminance": 0.0972
}

Semantic roles & 50–950 ramp

primary

#2E51B3

secondary

#C6B176

accent

#B946E2

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2E51B3

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

Preview Lab → · Contrast checker → · Palette generator →