#2F31BA#2F31BA

#2F31BA is a dark, highly saturated blue. Relative luminance 0.063; OKLCH L 41.8% C 0.207 H 272.3°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#2F31BA
RGB	rgb(47, 49, 186)
HSL	hsl(239, 60%, 46%)
HSV	hsv(239, 75%, 73%)
CMYK	cmyk(74.7%, 73.7%, 0%, 27.1%)
CIE-LAB	lab(30.27, 45.20, -71.47)
CIE-LCH	lch(30.27, 84.56, 302.31°)
OKLab	oklab(41.8% 0.0085 -0.2068)
OKLCH	oklch(41.8% 0.207 272.3)
XYZ	xyz(11.1305, 6.3450, 47.0830)
Luminance	0.0635 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F31BA #BAB82F

analogous

#2F76BA #2F31BA #732FBA

triadic

#2F31BA #BA2F31 #31BA2F

tetradic

#2F31BA #BA2F76 #BAB82F #2FBA73

square

#2F31BA #BA2F76 #BAB82F #2FBA73

split-complementary

#2F31BA #BA732F #76BA2F

monochromatic

#161758 #232489 #2F31BA #5355D3 #8485E0

Accessibility & contrast

On white

9.25

#2F31BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#2F31BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F31BA

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F31BA	#FFFFFF	#000000	##FFFFFF
##2F31BA	1.00	9.25	2.27	9.25
#FFFFFF	9.25	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBE

Deuteranopia (green-blind)

#0040B8

Tritanopia (blue-blind)

#005973

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2f31ba;
/* rgb */ color: rgb(47, 49, 186);
/* oklch */ color: oklch(41.8% 0.207 272.3);

Tailwind

colors: {
  custom: {
    50: '#7e6bd0',
    500: '#2f31ba',
    950: '#000000',
  },
}

SCSS

$custom: #2f31ba;
$custom-light: #7e6bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#2f31ba",
  "rgb": {
    "r": 47,
    "g": 49,
    "b": 186
  },
  "hsl": {
    "h": 239.137,
    "s": 59.657,
    "l": 45.686
  },
  "oklch": {
    "l": 0.41797,
    "c": 0.20701,
    "h": 272.3
  },
  "luminance": 0.06346
}

Semantic roles & 50–950 ramp

primary

#2F31BA

secondary

#C9C87C

accent

#E145E3

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #2F31BA

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

Preview Lab → · Contrast checker → · Palette generator →