#2F37BF#2F37BF

#2F37BF is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.2% C 0.207 H 271.4°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#2F37BF
RGB	rgb(47, 55, 191)
HSL	hsl(237, 61%, 47%)
HSV	hsv(237, 75%, 75%)
CMYK	cmyk(75.4%, 71.2%, 0%, 25.1%)
CIE-LAB	lab(32.03, 43.40, -71.52)
CIE-LCH	lch(32.03, 83.65, 301.25°)
OKLab	oklab(43.21% 0.0049 -0.207)
OKLCH	oklch(43.21% 0.207 271.4)
XYZ	xyz(11.9393, 7.0970, 50.0207)
Luminance	0.0710 (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

#2F37BF #BFB72F

analogous

#2F7FBF #2F37BF #6F2FBF

triadic

#2F37BF #BF2F37 #37BF2F

tetradic

#2F37BF #BF2F7F #BFB72F #2FBF6F

square

#2F37BF #BF2F7F #BFB72F #2FBF6F

split-complementary

#2F37BF #BF6F2F #7FBF2F

monochromatic

#171B5D #23298E #2F37BF #565DD5 #878CE1

Accessibility & contrast

On white

8.68

#2F37BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#2F37BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F37BF

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F37BF	#FFFFFF	#000000	##FFFFFF
##2F37BF	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C3

Deuteranopia (green-blind)

#0044BD

Tritanopia (blue-blind)

#005D77

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2f37bf;
/* rgb */ color: rgb(47, 55, 191);
/* oklch */ color: oklch(43.2% 0.207 271.4);

Tailwind

colors: {
  custom: {
    50: '#7f6fd4',
    500: '#2f37bf',
    950: '#000000',
  },
}

SCSS

$custom: #2f37bf;
$custom-light: #7f6fd4;
$custom-dark: #000000;

JSON

{
  "hex": "#2f37bf",
  "rgb": {
    "r": 47,
    "g": 55,
    "b": 191
  },
  "hsl": {
    "h": 236.667,
    "s": 60.504,
    "l": 46.667
  },
  "oklch": {
    "l": 0.43206,
    "c": 0.20706,
    "h": 271.4
  },
  "luminance": 0.07098
}

Semantic roles & 50–950 ramp

primary

#2F37BF

secondary

#CBC77F

accent

#DB44E4

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #2F37BF

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

Preview Lab → · Contrast checker → · Palette generator →