#2F37BD#2F37BD

#2F37BD is a dark, highly saturated blue. Relative luminance 0.070; OKLCH L 43.0% C 0.205 H 271.4°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#2F37BD
RGB	rgb(47, 55, 189)
HSL	hsl(237, 60%, 46%)
HSV	hsv(237, 75%, 74%)
CMYK	cmyk(75.1%, 70.9%, 0%, 25.9%)
CIE-LAB	lab(31.83, 42.71, -70.67)
CIE-LCH	lch(31.83, 82.57, 301.15°)
OKLab	oklab(43.01% 0.0051 -0.2045)
OKLCH	oklch(43.01% 0.205 271.4)
XYZ	xyz(11.7207, 7.0096, 48.8695)
Luminance	0.0701 (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

#2F37BD #BDB52F

analogous

#2F7EBD #2F37BD #6E2FBD

triadic

#2F37BD #BD2F37 #37BD2F

tetradic

#2F37BD #BD2F7E #BDB52F #2FBD6E

square

#2F37BD #BD2F7E #BDB52F #2FBD6E

split-complementary

#2F37BD #BD6E2F #7EBD2F

monochromatic

#171A5B #23298C #2F37BD #555CD5 #868BE1

Accessibility & contrast

On white

8.74

#2F37BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#2F37BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F37BD

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F37BD	#FFFFFF	#000000	##FFFFFF
##2F37BD	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C1

Deuteranopia (green-blind)

#0044BB

Tritanopia (blue-blind)

#005D76

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2f37bd;
/* rgb */ color: rgb(47, 55, 189);
/* oklch */ color: oklch(43.0% 0.205 271.4);

Tailwind

colors: {
  custom: {
    50: '#7e6fd2',
    500: '#2f37bd',
    950: '#000000',
  },
}

SCSS

$custom: #2f37bd;
$custom-light: #7e6fd2;
$custom-dark: #000000;

JSON

{
  "hex": "#2f37bd",
  "rgb": {
    "r": 47,
    "g": 55,
    "b": 189
  },
  "hsl": {
    "h": 236.62,
    "s": 60.169,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43005,
    "c": 0.20458,
    "h": 271.4
  },
  "luminance": 0.07011
}

Semantic roles & 50–950 ramp

primary

#2F37BD

secondary

#CAC67E

accent

#DA44E3

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #2F37BD

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

Preview Lab → · Contrast checker → · Palette generator →