#2F37BE#2F37BE

#2F37BE is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.1% C 0.206 H 271.4°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#2F37BE
RGB	rgb(47, 55, 190)
HSL	hsl(237, 60%, 46%)
HSV	hsv(237, 75%, 75%)
CMYK	cmyk(75.3%, 71.1%, 0%, 25.5%)
CIE-LAB	lab(31.93, 43.05, -71.09)
CIE-LCH	lch(31.93, 83.11, 301.20°)
OKLab	oklab(43.11% 0.005 -0.2058)
OKLCH	oklch(43.11% 0.206 271.4)
XYZ	xyz(11.8296, 7.0532, 49.4432)
Luminance	0.0705 (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

#2F37BE #BEB62F

analogous

#2F7FBE #2F37BE #6F2FBE

triadic

#2F37BE #BE2F37 #37BE2F

tetradic

#2F37BE #BE2F7F #BEB62F #2FBE6F

square

#2F37BE #BE2F7F #BEB62F #2FBE6F

split-complementary

#2F37BE #BE6F2F #7FBE2F

monochromatic

#171B5C #23298D #2F37BE #555CD5 #868BE1

Accessibility & contrast

On white

8.71

#2F37BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#2F37BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F37BE

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F37BE	#FFFFFF	#000000	##FFFFFF
##2F37BE	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C2

Deuteranopia (green-blind)

#0044BC

Tritanopia (blue-blind)

#005D77

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2f37be;
/* rgb */ color: rgb(47, 55, 190);
/* oklch */ color: oklch(43.1% 0.206 271.4);

Tailwind

colors: {
  custom: {
    50: '#7e6fd3',
    500: '#2f37be',
    950: '#000000',
  },
}

SCSS

$custom: #2f37be;
$custom-light: #7e6fd3;
$custom-dark: #000000;

JSON

{
  "hex": "#2f37be",
  "rgb": {
    "r": 47,
    "g": 55,
    "b": 190
  },
  "hsl": {
    "h": 236.643,
    "s": 60.338,
    "l": 46.471
  },
  "oklch": {
    "l": 0.43105,
    "c": 0.20583,
    "h": 271.4
  },
  "luminance": 0.07054
}

Semantic roles & 50–950 ramp

primary

#2F37BE

secondary

#CBC67E

accent

#DB44E3

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #2F37BE

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

Preview Lab → · Contrast checker → · Palette generator →