#2F37AE#2F37AE

#2F37AE is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.5% C 0.186 H 272.1°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#2F37AE
RGB	rgb(47, 55, 174)
HSL	hsl(236, 57%, 43%)
HSV	hsv(236, 73%, 68%)
CMYK	cmyk(73%, 68.4%, 0%, 31.8%)
CIE-LAB	lab(30.38, 37.51, -64.14)
CIE-LCH	lch(30.38, 74.30, 300.31°)
OKLab	oklab(41.52% 0.0069 -0.1855)
OKLCH	oklch(41.52% 0.186 272.1)
XYZ	xyz(10.1759, 6.3917, 40.7336)
Luminance	0.0639 (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

#2F37AE #AEA62F

analogous

#2F77AE #2F37AE #662FAE

triadic

#2F37AE #AE2F37 #37AE2F

tetradic

#2F37AE #AE2F77 #AEA62F #2FAE66

square

#2F37AE #AE2F77 #AEA62F #2FAE66

split-complementary

#2F37AE #AE662F #77AE2F

monochromatic

#15194E #22287E #2F37AE #4C54CF #7C82DC

Accessibility & contrast

On white

9.22

#2F37AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#2F37AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F37AE

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F37AE	#FFFFFF	#000000	##FFFFFF
##2F37AE	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB2

Deuteranopia (green-blind)

#0042AC

Tritanopia (blue-blind)

#00576E

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2f37ae;
/* rgb */ color: rgb(47, 55, 174);
/* oklch */ color: oklch(41.5% 0.186 272.1);

Tailwind

colors: {
  custom: {
    50: '#7b6ec7',
    500: '#2f37ae',
    950: '#000000',
  },
}

SCSS

$custom: #2f37ae;
$custom-light: #7b6ec7;
$custom-dark: #000000;

JSON

{
  "hex": "#2f37ae",
  "rgb": {
    "r": 47,
    "g": 55,
    "b": 174
  },
  "hsl": {
    "h": 236.22,
    "s": 57.466,
    "l": 43.333
  },
  "oklch": {
    "l": 0.41522,
    "c": 0.18562,
    "h": 272.1
  },
  "luminance": 0.06393
}

Semantic roles & 50–950 ramp

primary

#2F37AE

secondary

#C4BF75

accent

#D747E1

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2F37AE

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

Preview Lab → · Contrast checker → · Palette generator →