#2F37AD#2F37AD

#2F37AD is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.4% C 0.184 H 272.2°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#2F37AD
RGB	rgb(47, 55, 173)
HSL	hsl(236, 57%, 43%)
HSV	hsv(236, 73%, 68%)
CMYK	cmyk(72.8%, 68.2%, 0%, 32.2%)
CIE-LAB	lab(30.29, 37.15, -63.70)
CIE-LCH	lch(30.29, 73.74, 300.25°)
OKLab	oklab(41.43% 0.0071 -0.1842)
OKLCH	oklch(41.43% 0.184 272.2)
XYZ	xyz(10.0788, 6.3528, 40.2221)
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

#2F37AD #ADA52F

analogous

#2F76AD #2F37AD #662FAD

triadic

#2F37AD #AD2F37 #37AD2F

tetradic

#2F37AD #AD2F76 #ADA52F #2FAD66

square

#2F37AD #AD2F76 #ADA52F #2FAD66

split-complementary

#2F37AD #AD662F #76AD2F

monochromatic

#15184D #22287D #2F37AD #4B53CE #7B81DB

Accessibility & contrast

On white

9.25

#2F37AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#2F37AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F37AD

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F37AD	#FFFFFF	#000000	##FFFFFF
##2F37AD	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)

#004DB1

Deuteranopia (green-blind)

#0041AB

Tritanopia (blue-blind)

#00576D

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2f37ad;
/* rgb */ color: rgb(47, 55, 173);
/* oklch */ color: oklch(41.4% 0.184 272.2);

Tailwind

colors: {
  custom: {
    50: '#7a6ec7',
    500: '#2f37ad',
    950: '#000000',
  },
}

SCSS

$custom: #2f37ad;
$custom-light: #7a6ec7;
$custom-dark: #000000;

JSON

{
  "hex": "#2f37ad",
  "rgb": {
    "r": 47,
    "g": 55,
    "b": 173
  },
  "hsl": {
    "h": 236.19,
    "s": 57.273,
    "l": 43.137
  },
  "oklch": {
    "l": 0.41425,
    "c": 0.18432,
    "h": 272.2
  },
  "luminance": 0.06354
}

Semantic roles & 50–950 ramp

primary

#2F37AD

secondary

#C4BF74

accent

#D747E1

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2F37AD

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

Preview Lab → · Contrast checker → · Palette generator →