#2B3791#2B3791

#2B3791 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.6% C 0.148 H 271.7°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).

Color values

HEX	#2B3791
RGB	rgb(43, 55, 145)
HSL	hsl(233, 54%, 37%)
HSV	hsv(233, 70%, 57%)
CMYK	cmyk(70.3%, 62.1%, 0%, 43.1%)
CIE-LAB	lab(27.54, 26.50, -51.21)
CIE-LCH	lch(27.54, 57.66, 297.36°)
OKLab	oklab(38.58% 0.0045 -0.1477)
OKLCH	oklch(38.58% 0.148 271.7)
XYZ	xyz(7.4716, 5.2896, 27.4098)
Luminance	0.0529 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3791 #91852B

analogous

#2B6A91 #2B3791 #522B91

triadic

#2B3791 #912B37 #37912B

tetradic

#2B3791 #912B6A #91852B #2B9152

square

#2B3791 #912B6A #91852B #2B9152

split-complementary

#2B3791 #91522B #6A912B

monochromatic

#0F1333 #1D2562 #2B3791 #3949C0 #6572D1

Accessibility & contrast

On white

10.20

#2B3791 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#2B3791 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3791

10.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3791	#FFFFFF	#000000	##FFFFFF
##2B3791	1.00	10.20	2.06	10.20
#FFFFFF	10.20	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004694

Deuteranopia (green-blind)

#003C8F

Tritanopia (blue-blind)

#004E5E

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2b3791;
/* rgb */ color: rgb(43, 55, 145);
/* oklch */ color: oklch(38.6% 0.148 271.7);

Tailwind

colors: {
  custom: {
    50: '#726db2',
    500: '#2b3791',
    950: '#000000',
  },
}

SCSS

$custom: #2b3791;
$custom-light: #726db2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3791",
  "rgb": {
    "r": 43,
    "g": 55,
    "b": 145
  },
  "hsl": {
    "h": 232.941,
    "s": 54.255,
    "l": 36.863
  },
  "oklch": {
    "l": 0.38584,
    "c": 0.14776,
    "h": 271.7
  },
  "luminance": 0.0529
}

Semantic roles & 50–950 ramp

primary

#2B3791

secondary

#B8AD60

accent

#CC4ADE

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2B3791

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

Preview Lab → · Contrast checker → · Palette generator →