#2B4591#2B4591

#2B4591 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.5% C 0.129 H 266.5°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#2B4591
RGB	rgb(43, 69, 145)
HSL	hsl(225, 54%, 37%)
HSV	hsv(225, 70%, 57%)
CMYK	cmyk(70.3%, 52.4%, 0%, 43.1%)
CIE-LAB	lab(31.38, 17.02, -44.99)
CIE-LCH	lch(31.38, 48.10, 290.72°)
OKLab	oklab(41.46% -0.0078 -0.1292)
OKLCH	oklch(41.46% 0.129 266.5)
XYZ	xyz(8.2334, 6.8134, 27.6638)
Luminance	0.0681 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4591 #91772B

analogous

#2B7891 #2B4591 #442B91

triadic

#2B4591 #912B45 #45912B

tetradic

#2B4591 #912B78 #91772B #2B9144

square

#2B4591 #912B78 #91772B #2B9144

split-complementary

#2B4591 #91442B #78912B

monochromatic

#0F1833 #1D2F62 #2B4591 #395BC0 #6581D1

Accessibility & contrast

On white

8.89

#2B4591 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#2B4591 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4591

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4591	#FFFFFF	#000000	##FFFFFF
##2B4591	1.00	8.89	2.36	8.89
#FFFFFF	8.89	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#174F94

Deuteranopia (green-blind)

#00458F

Tritanopia (blue-blind)

#005764

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2b4591;
/* rgb */ color: rgb(43, 69, 145);
/* oklch */ color: oklch(41.5% 0.129 266.5);

Tailwind

colors: {
  custom: {
    50: '#7178b2',
    500: '#2b4591',
    950: '#000000',
  },
}

SCSS

$custom: #2b4591;
$custom-light: #7178b2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4591",
  "rgb": {
    "r": 43,
    "g": 69,
    "b": 145
  },
  "hsl": {
    "h": 224.706,
    "s": 54.255,
    "l": 36.863
  },
  "oklch": {
    "l": 0.41458,
    "c": 0.12944,
    "h": 266.5
  },
  "luminance": 0.06814
}

Semantic roles & 50–950 ramp

primary

#2B4591

secondary

#B8A160

accent

#B84ADE

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #2B4591

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

Preview Lab → · Contrast checker → · Palette generator →