#2F51AE#2F51AE

#2F51AE is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.4% C 0.154 H 265.6°. Best body text is #FFFFFF at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#2F51AE
RGB	rgb(47, 81, 174)
HSL	hsl(224, 57%, 43%)
HSV	hsv(224, 73%, 68%)
CMYK	cmyk(73%, 53.4%, 0%, 31.8%)
CIE-LAB	lab(37.01, 20.60, -53.33)
CIE-LCH	lch(37.01, 57.17, 291.12°)
OKLab	oklab(46.44% -0.0119 -0.1535)
OKLCH	oklch(46.44% 0.154 265.6)
XYZ	xyz(11.7520, 9.5439, 41.2590)
Luminance	0.0954 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F51AE #AE8C2F

analogous

#2F90AE #2F51AE #4C2FAE

triadic

#2F51AE #AE2F51 #51AE2F

tetradic

#2F51AE #AE2F90 #AE8C2F #2FAE4C

square

#2F51AE #AE2F90 #AE8C2F #2FAE4C

split-complementary

#2F51AE #AE4C2F #90AE2F

monochromatic

#15244E #223B7E #2F51AE #4C6FCF #7C95DC

Accessibility & contrast

On white

7.22

#2F51AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#2F51AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F51AE

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F51AE	#FFFFFF	#000000	##FFFFFF
##2F51AE	1.00	7.22	2.91	7.22
#FFFFFF	7.22	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E5DB1

Deuteranopia (green-blind)

#0052AC

Tritanopia (blue-blind)

#006777

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #2f51ae;
/* rgb */ color: rgb(47, 81, 174);
/* oklch */ color: oklch(46.4% 0.154 265.6);

Tailwind

colors: {
  custom: {
    50: '#7981c7',
    500: '#2f51ae',
    950: '#000000',
  },
}

SCSS

$custom: #2f51ae;
$custom-light: #7981c7;
$custom-dark: #000000;

JSON

{
  "hex": "#2f51ae",
  "rgb": {
    "r": 47,
    "g": 81,
    "b": 174
  },
  "hsl": {
    "h": 223.937,
    "s": 57.466,
    "l": 43.333
  },
  "oklch": {
    "l": 0.46441,
    "c": 0.15393,
    "h": 265.6
  },
  "luminance": 0.09545
}

Semantic roles & 50–950 ramp

primary

#2F51AE

secondary

#C4AF75

accent

#B847E1

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2F51AE

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

Preview Lab → · Contrast checker → · Palette generator →