#2F31BC#2F31BC

#2F31BC is a dark, highly saturated blue. Relative luminance 0.064; OKLCH L 42.0% C 0.209 H 272.2°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#2F31BC
RGB	rgb(47, 49, 188)
HSL	hsl(239, 60%, 46%)
HSV	hsv(239, 75%, 74%)
CMYK	cmyk(75%, 73.9%, 0%, 26.3%)
CIE-LAB	lab(30.47, 45.86, -72.31)
CIE-LCH	lch(30.47, 85.63, 302.38°)
OKLab	oklab(42.01% 0.0081 -0.2093)
OKLCH	oklch(42.01% 0.209 272.2)
XYZ	xyz(11.3446, 6.4306, 48.2105)
Luminance	0.0643 (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

#2F31BC #BCBA2F

analogous

#2F77BC #2F31BC #732FBC

triadic

#2F31BC #BC2F31 #31BC2F

tetradic

#2F31BC #BC2F77 #BCBA2F #2FBC73

square

#2F31BC #BC2F77 #BCBA2F #2FBC73

split-complementary

#2F31BC #BC732F #77BC2F

monochromatic

#17175A #23248B #2F31BC #5456D4 #8586E0

Accessibility & contrast

On white

9.18

#2F31BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#2F31BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F31BC

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F31BC	#FFFFFF	#000000	##FFFFFF
##2F31BC	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FC0

Deuteranopia (green-blind)

#0041BA

Tritanopia (blue-blind)

#005974

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2f31bc;
/* rgb */ color: rgb(47, 49, 188);
/* oklch */ color: oklch(42.0% 0.209 272.2);

Tailwind

colors: {
  custom: {
    50: '#7e6bd1',
    500: '#2f31bc',
    950: '#000000',
  },
}

SCSS

$custom: #2f31bc;
$custom-light: #7e6bd1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f31bc",
  "rgb": {
    "r": 47,
    "g": 49,
    "b": 188
  },
  "hsl": {
    "h": 239.149,
    "s": 60,
    "l": 46.078
  },
  "oklch": {
    "l": 0.42006,
    "c": 0.20945,
    "h": 272.2
  },
  "luminance": 0.06432
}

Semantic roles & 50–950 ramp

primary

#2F31BC

secondary

#CAC97D

accent

#E145E3

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #2F31BC

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

Preview Lab → · Contrast checker → · Palette generator →