#2B4B9D#2B4B9D

#2B4B9D is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.7% C 0.139 H 265.1°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#2B4B9D
RGB	rgb(43, 75, 157)
HSL	hsl(223, 57%, 39%)
HSV	hsv(223, 73%, 62%)
CMYK	cmyk(72.6%, 52.2%, 0%, 38.4%)
CIE-LAB	lab(33.94, 17.56, -48.14)
CIE-LCH	lch(33.94, 51.24, 290.05°)
OKLab	oklab(43.68% -0.0119 -0.1384)
OKLCH	oklch(43.68% 0.139 265.1)
XYZ	xyz(9.5960, 7.9791, 32.9261)
Luminance	0.0798 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4B9D #9D7D2B

analogous

#2B849D #2B4B9D #442B9D

triadic

#2B4B9D #9D2B4B #4B9D2B

tetradic

#2B4B9D #9D2B84 #9D7D2B #2B9D44

square

#2B4B9D #9D2B84 #9D7D2B #2B9D44

split-complementary

#2B4B9D #9D442B #849D2B

monochromatic

#111D3D #1E346D #2B4B9D #3C64CA #6C8AD7

Accessibility & contrast

On white

8.09

#2B4B9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#2B4B9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4B9D

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4B9D	#FFFFFF	#000000	##FFFFFF
##2B4B9D	1.00	8.09	2.60	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1755A0

Deuteranopia (green-blind)

#004B9B

Tritanopia (blue-blind)

#005F6C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2b4b9d;
/* rgb */ color: rgb(43, 75, 157);
/* oklch */ color: oklch(43.7% 0.139 265.1);

Tailwind

colors: {
  custom: {
    50: '#747cba',
    500: '#2b4b9d',
    950: '#000000',
  },
}

SCSS

$custom: #2b4b9d;
$custom-light: #747cba;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4b9d",
  "rgb": {
    "r": 43,
    "g": 75,
    "b": 157
  },
  "hsl": {
    "h": 223.158,
    "s": 57,
    "l": 39.216
  },
  "oklch": {
    "l": 0.43675,
    "c": 0.13889,
    "h": 265.1
  },
  "luminance": 0.0798
}

Semantic roles & 50–950 ramp

primary

#2B4B9D

secondary

#BDA566

accent

#B548E0

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #2B4B9D

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

Preview Lab → · Contrast checker → · Palette generator →