#2B4B9F#2B4B9F

#2B4B9F is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.8% C 0.142 H 265.3°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#2B4B9F
RGB	rgb(43, 75, 159)
HSL	hsl(223, 57%, 40%)
HSV	hsv(223, 73%, 62%)
CMYK	cmyk(73%, 52.8%, 0%, 37.6%)
CIE-LAB	lab(34.08, 18.33, -49.11)
CIE-LCH	lch(34.08, 52.42, 290.47°)
OKLab	oklab(43.83% -0.0117 -0.1412)
OKLCH	oklch(43.83% 0.142 265.3)
XYZ	xyz(9.7681, 8.0479, 33.8328)
Luminance	0.0805 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4B9F #9F7F2B

analogous

#2B859F #2B4B9F #452B9F

triadic

#2B4B9F #9F2B4B #4B9F2B

tetradic

#2B4B9F #9F2B85 #9F7F2B #2B9F45

square

#2B4B9F #9F2B85 #9F7F2B #2B9F45

split-complementary

#2B4B9F #9F452B #859F2B

monochromatic

#111E3F #1E346F #2B4B9F #3D64CA #6D8AD7

Accessibility & contrast

On white

8.05

#2B4B9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#2B4B9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4B9F

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4B9F	#FFFFFF	#000000	##FFFFFF
##2B4B9F	1.00	8.05	2.61	8.05
#FFFFFF	8.05	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1356A2

Deuteranopia (green-blind)

#004B9D

Tritanopia (blue-blind)

#005F6D

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2b4b9f;
/* rgb */ color: rgb(43, 75, 159);
/* oklch */ color: oklch(43.8% 0.142 265.3);

Tailwind

colors: {
  custom: {
    50: '#747cbc',
    500: '#2b4b9f',
    950: '#000000',
  },
}

SCSS

$custom: #2b4b9f;
$custom-light: #747cbc;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4b9f",
  "rgb": {
    "r": 43,
    "g": 75,
    "b": 159
  },
  "hsl": {
    "h": 223.448,
    "s": 57.426,
    "l": 39.608
  },
  "oklch": {
    "l": 0.43829,
    "c": 0.14174,
    "h": 265.3
  },
  "luminance": 0.08049
}

Semantic roles & 50–950 ramp

primary

#2B4B9F

secondary

#BEA667

accent

#B647E1

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #2B4B9F

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

Preview Lab → · Contrast checker → · Palette generator →