#2F51AD#2F51AD

#2F51AD is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.4% C 0.153 H 265.5°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#2F51AD
RGB	rgb(47, 81, 173)
HSL	hsl(224, 57%, 43%)
HSV	hsv(224, 73%, 68%)
CMYK	cmyk(72.8%, 53.2%, 0%, 32.2%)
CIE-LAB	lab(36.94, 20.22, -52.85)
CIE-LCH	lch(36.94, 56.59, 290.93°)
OKLab	oklab(46.36% -0.012 -0.1521)
OKLCH	oklch(46.36% 0.153 265.5)
XYZ	xyz(11.6549, 9.5051, 40.7475)
Luminance	0.0951 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F51AD #AD8B2F

analogous

#2F90AD #2F51AD #4C2FAD

triadic

#2F51AD #AD2F51 #51AD2F

tetradic

#2F51AD #AD2F90 #AD8B2F #2FAD4C

square

#2F51AD #AD2F90 #AD8B2F #2FAD4C

split-complementary

#2F51AD #AD4C2F #90AD2F

monochromatic

#15244D #223A7D #2F51AD #4B6ECE #7B95DB

Accessibility & contrast

On white

7.24

#2F51AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#2F51AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F51AD

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F51AD	#FFFFFF	#000000	##FFFFFF
##2F51AD	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#105DB0

Deuteranopia (green-blind)

#0051AB

Tritanopia (blue-blind)

#006777

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #2f51ad;
/* rgb */ color: rgb(47, 81, 173);
/* oklch */ color: oklch(46.4% 0.153 265.5);

Tailwind

colors: {
  custom: {
    50: '#7881c6',
    500: '#2f51ad',
    950: '#000000',
  },
}

SCSS

$custom: #2f51ad;
$custom-light: #7881c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2f51ad",
  "rgb": {
    "r": 47,
    "g": 81,
    "b": 173
  },
  "hsl": {
    "h": 223.81,
    "s": 57.273,
    "l": 43.137
  },
  "oklch": {
    "l": 0.46364,
    "c": 0.15254,
    "h": 265.5
  },
  "luminance": 0.09506
}

Semantic roles & 50–950 ramp

primary

#2F51AD

secondary

#C4AE74

accent

#B747E1

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2F51AD

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

Preview Lab → · Contrast checker → · Palette generator →