#2F37CA#2F37CA

#2F37CA is a dark, highly saturated blue. Relative luminance 0.076; OKLCH L 44.3% C 0.220 H 270.9°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#2F37CA
RGB	rgb(47, 55, 202)
HSL	hsl(237, 62%, 49%)
HSV	hsv(237, 77%, 79%)
CMYK	cmyk(76.7%, 72.8%, 0%, 20.8%)
CIE-LAB	lab(33.13, 47.11, -76.13)
CIE-LCH	lch(33.13, 89.53, 301.75°)
OKLab	oklab(44.33% 0.0033 -0.2204)
OKLCH	oklch(44.33% 0.22 270.9)
XYZ	xyz(13.1955, 7.5995, 56.6371)
Luminance	0.0760 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.42

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F37CA #CAC22F

analogous

#2F85CA #2F37CA #752FCA

triadic

#2F37CA #CA2F37 #37CA2F

tetradic

#2F37CA #CA2F85 #CAC22F #2FCA75

square

#2F37CA #CA2F85 #CAC22F #2FCA75

split-complementary

#2F37CA #CA752F #85CA2F

monochromatic

#181C67 #232998 #2F37CA #5D63D9 #8F93E5

Accessibility & contrast

On white

8.33

#2F37CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#2F37CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F37CA

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F37CA	#FFFFFF	#000000	##FFFFFF
##2F37CA	1.00	8.33	2.52	8.33
#FFFFFF	8.33	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055CE

Deuteranopia (green-blind)

#0046C7

Tritanopia (blue-blind)

#00617D

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2f37ca;
/* rgb */ color: rgb(47, 55, 202);
/* oklch */ color: oklch(44.3% 0.220 270.9);

Tailwind

colors: {
  custom: {
    50: '#816fdb',
    500: '#2f37ca',
    950: '#000000',
  },
}

SCSS

$custom: #2f37ca;
$custom-light: #816fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#2f37ca",
  "rgb": {
    "r": 47,
    "g": 55,
    "b": 202
  },
  "hsl": {
    "h": 236.903,
    "s": 62.249,
    "l": 48.824
  },
  "oklch": {
    "l": 0.4433,
    "c": 0.22047,
    "h": 270.9
  },
  "luminance": 0.07601
}

Semantic roles & 50–950 ramp

primary

#2F37CA

secondary

#CFCB86

accent

#DD42E5

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #2F37CA

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

Preview Lab → · Contrast checker → · Palette generator →