#2F51B2#2F51B2

#2F51B2 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.8% C 0.159 H 265.8°. Best body text is #FFFFFF at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#2F51B2
RGB	rgb(47, 81, 178)
HSL	hsl(224, 58%, 44%)
HSV	hsv(224, 74%, 70%)
CMYK	cmyk(73.6%, 54.5%, 0%, 30.2%)
CIE-LAB	lab(37.30, 22.11, -55.22)
CIE-LCH	lch(37.30, 59.48, 291.82°)
OKLab	oklab(46.75% -0.0116 -0.159)
OKLCH	oklch(46.75% 0.159 265.8)
XYZ	xyz(12.1478, 9.7023, 43.3434)
Luminance	0.0970 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F51B2 #B2902F

analogous

#2F93B2 #2F51B2 #4E2FB2

triadic

#2F51B2 #B22F51 #51B22F

tetradic

#2F51B2 #B22F93 #B2902F #2FB24E

square

#2F51B2 #B22F93 #B2902F #2FB24E

split-complementary

#2F51B2 #B24E2F #93B22F

monochromatic

#152551 #223B82 #2F51B2 #4E70D0 #7E97DD

Accessibility & contrast

On white

7.14

#2F51B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#2F51B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F51B2

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F51B2	#FFFFFF	#000000	##FFFFFF
##2F51B2	1.00	7.14	2.94	7.14
#FFFFFF	7.14	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EB5

Deuteranopia (green-blind)

#0052B0

Tritanopia (blue-blind)

#006979

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2f51b2;
/* rgb */ color: rgb(47, 81, 178);
/* oklch */ color: oklch(46.8% 0.159 265.8);

Tailwind

colors: {
  custom: {
    50: '#7a81ca',
    500: '#2f51b2',
    950: '#000000',
  },
}

SCSS

$custom: #2f51b2;
$custom-light: #7a81ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2f51b2",
  "rgb": {
    "r": 47,
    "g": 81,
    "b": 178
  },
  "hsl": {
    "h": 224.427,
    "s": 58.222,
    "l": 44.118
  },
  "oklch": {
    "l": 0.46754,
    "c": 0.15947,
    "h": 265.8
  },
  "luminance": 0.09704
}

Semantic roles & 50–950 ramp

primary

#2F51B2

secondary

#C6B177

accent

#B946E1

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2F51B2

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

Preview Lab → · Contrast checker → · Palette generator →