#2F37AF#2F37AF

#2F37AF is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.6% C 0.187 H 272.1°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#2F37AF
RGB	rgb(47, 55, 175)
HSL	hsl(236, 58%, 44%)
HSV	hsv(236, 73%, 69%)
CMYK	cmyk(73.1%, 68.6%, 0%, 31.4%)
CIE-LAB	lab(30.47, 37.86, -64.59)
CIE-LCH	lch(30.47, 74.86, 300.38°)
OKLab	oklab(41.62% 0.0068 -0.1868)
OKLCH	oklch(41.62% 0.187 272.1)
XYZ	xyz(10.2737, 6.4308, 41.2490)
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

#2F37AF #AFA72F

analogous

#2F77AF #2F37AF #672FAF

triadic

#2F37AF #AF2F37 #37AF2F

tetradic

#2F37AF #AF2F77 #AFA72F #2FAF67

square

#2F37AF #AF2F77 #AFA72F #2FAF67

split-complementary

#2F37AF #AF672F #77AF2F

monochromatic

#15194F #22287F #2F37AF #4C54CF #7C82DC

Accessibility & contrast

On white

9.18

#2F37AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#2F37AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F37AF

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F37AF	#FFFFFF	#000000	##FFFFFF
##2F37AF	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)

#004EB3

Deuteranopia (green-blind)

#0042AD

Tritanopia (blue-blind)

#00586E

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2f37af;
/* rgb */ color: rgb(47, 55, 175);
/* oklch */ color: oklch(41.6% 0.187 272.1);

Tailwind

colors: {
  custom: {
    50: '#7b6ec8',
    500: '#2f37af',
    950: '#000000',
  },
}

SCSS

$custom: #2f37af;
$custom-light: #7b6ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#2f37af",
  "rgb": {
    "r": 47,
    "g": 55,
    "b": 175
  },
  "hsl": {
    "h": 236.25,
    "s": 57.658,
    "l": 43.529
  },
  "oklch": {
    "l": 0.41619,
    "c": 0.18691,
    "h": 272.1
  },
  "luminance": 0.06432
}

Semantic roles & 50–950 ramp

primary

#2F37AF

secondary

#C4C075

accent

#D747E1

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2F37AF

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

Preview Lab → · Contrast checker → · Palette generator →