#2B4B99#2B4B99

#2B4B99 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.4% C 0.133 H 264.7°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#2B4B99
RGB	rgb(43, 75, 153)
HSL	hsl(223, 56%, 38%)
HSV	hsv(223, 72%, 60%)
CMYK	cmyk(71.9%, 51%, 0%, 40%)
CIE-LAB	lab(33.66, 16.03, -46.18)
CIE-LCH	lch(33.66, 48.88, 289.14°)
OKLab	oklab(43.37% -0.0124 -0.1326)
OKLCH	oklch(43.37% 0.133 264.7)
XYZ	xyz(9.2601, 7.8447, 31.1570)
Luminance	0.0785 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4B99 #99792B

analogous

#2B8299 #2B4B99 #422B99

triadic

#2B4B99 #992B4B #4B992B

tetradic

#2B4B99 #992B82 #99792B #2B9942

square

#2B4B99 #992B82 #99792B #2B9942

split-complementary

#2B4B99 #99422B #82992B

monochromatic

#101C39 #1E3469 #2B4B99 #3A63C8 #6989D5

Accessibility & contrast

On white

8.17

#2B4B99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#2B4B99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4B99

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4B99	#FFFFFF	#000000	##FFFFFF
##2B4B99	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D549C

Deuteranopia (green-blind)

#004A97

Tritanopia (blue-blind)

#005D6A

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2b4b99;
/* rgb */ color: rgb(43, 75, 153);
/* oklch */ color: oklch(43.4% 0.133 264.7);

Tailwind

colors: {
  custom: {
    50: '#737cb8',
    500: '#2b4b99',
    950: '#000000',
  },
}

SCSS

$custom: #2b4b99;
$custom-light: #737cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4b99",
  "rgb": {
    "r": 43,
    "g": 75,
    "b": 153
  },
  "hsl": {
    "h": 222.545,
    "s": 56.122,
    "l": 38.431
  },
  "oklch": {
    "l": 0.43371,
    "c": 0.13319,
    "h": 264.7
  },
  "luminance": 0.07846
}

Semantic roles & 50–950 ramp

primary

#2B4B99

secondary

#BCA264

accent

#B348DF

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #2B4B99

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

Preview Lab → · Contrast checker → · Palette generator →