#2B37B5#2B37B5

#2B37B5 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 42.0% C 0.196 H 270.6°. Best body text is #FFFFFF at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#2B37B5
RGB	rgb(43, 55, 181)
HSL	hsl(235, 62%, 44%)
HSV	hsv(235, 76%, 71%)
CMYK	cmyk(76.2%, 69.6%, 0%, 29%)
CIE-LAB	lab(30.83, 39.56, -67.58)
CIE-LCH	lch(30.83, 78.31, 300.34°)
OKLab	oklab(41.99% 0.0019 -0.1956)
OKLCH	oklch(41.99% 0.196 270.6)
XYZ	xyz(10.7001, 6.5810, 44.4134)
Luminance	0.0658 (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

#2B37B5 #B5A92B

analogous

#2B7CB5 #2B37B5 #642BB5

triadic

#2B37B5 #B52B37 #37B52B

tetradic

#2B37B5 #B52B7C #B5A92B #2BB564

square

#2B37B5 #B52B7C #B5A92B #2BB564

split-complementary

#2B37B5 #B5642B #7CB52B

monochromatic

#141952 #1F2884 #2B37B5 #4955D4 #7B84E0

Accessibility & contrast

On white

9.07

#2B37B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#2B37B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B37B5

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B37B5	#FFFFFF	#000000	##FFFFFF
##2B37B5	1.00	9.07	2.32	9.07
#FFFFFF	9.07	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB9

Deuteranopia (green-blind)

#0042B3

Tritanopia (blue-blind)

#005A72

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2b37b5;
/* rgb */ color: rgb(43, 55, 181);
/* oklch */ color: oklch(42.0% 0.196 270.6);

Tailwind

colors: {
  custom: {
    50: '#7b6ecc',
    500: '#2b37b5',
    950: '#000000',
  },
}

SCSS

$custom: #2b37b5;
$custom-light: #7b6ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#2b37b5",
  "rgb": {
    "r": 43,
    "g": 55,
    "b": 181
  },
  "hsl": {
    "h": 234.783,
    "s": 61.607,
    "l": 43.922
  },
  "oklch": {
    "l": 0.41994,
    "c": 0.19561,
    "h": 270.6
  },
  "luminance": 0.06582
}

Semantic roles & 50–950 ramp

primary

#2B37B5

secondary

#C8C074

accent

#D743E5

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2B37B5

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

Preview Lab → · Contrast checker → · Palette generator →