#2E51B7#2E51B7

#2E51B7 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.1% C 0.167 H 265.8°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#2E51B7
RGB	rgb(46, 81, 183)
HSL	hsl(225, 60%, 45%)
HSV	hsv(225, 75%, 72%)
CMYK	cmyk(74.9%, 55.7%, 0%, 28.2%)
CIE-LAB	lab(37.63, 23.86, -57.64)
CIE-LCH	lch(37.63, 62.38, 292.49°)
OKLab	oklab(47.11% -0.0121 -0.1662)
OKLCH	oklch(47.11% 0.167 265.8)
XYZ	xyz(12.6134, 9.8832, 46.0335)
Luminance	0.0988 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2E51B7 #B7942E

analogous

#2E95B7 #2E51B7 #502EB7

triadic

#2E51B7 #B72E51 #51B72E

tetradic

#2E51B7 #B72E95 #B7942E #2EB750

square

#2E51B7 #B72E95 #B7942E #2EB750

split-complementary

#2E51B7 #B7502E #95B72E

monochromatic

#152655 #223B86 #2E51B7 #4F71D3 #8098DF

Accessibility & contrast

On white

7.05

#2E51B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#2E51B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2E51B7

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2E51B7	#FFFFFF	#000000	##FFFFFF
##2E51B7	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FBB

Deuteranopia (green-blind)

#0053B5

Tritanopia (blue-blind)

#006A7C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2e51b7;
/* rgb */ color: rgb(46, 81, 183);
/* oklch */ color: oklch(47.1% 0.167 265.8);

Tailwind

colors: {
  custom: {
    50: '#7a81cd',
    500: '#2e51b7',
    950: '#000000',
  },
}

SCSS

$custom: #2e51b7;
$custom-light: #7a81cd;
$custom-dark: #000000;

JSON

{
  "hex": "#2e51b7",
  "rgb": {
    "r": 46,
    "g": 81,
    "b": 183
  },
  "hsl": {
    "h": 224.672,
    "s": 59.825,
    "l": 44.902
  },
  "oklch": {
    "l": 0.47108,
    "c": 0.16661,
    "h": 265.8
  },
  "luminance": 0.09885
}

Semantic roles & 50–950 ramp

primary

#2E51B7

secondary

#C8B479

accent

#BB45E3

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #2E51B7

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

Preview Lab → · Contrast checker → · Palette generator →