#2B4FAB#2B4FAB

#2B4FAB is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.6% C 0.153 H 264.8°. Best body text is #FFFFFF at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#2B4FAB
RGB	rgb(43, 79, 171)
HSL	hsl(223, 60%, 42%)
HSV	hsv(223, 75%, 67%)
CMYK	cmyk(74.9%, 53.8%, 0%, 32.9%)
CIE-LAB	lab(36.07, 20.25, -53.08)
CIE-LCH	lch(36.07, 56.81, 290.89°)
OKLab	oklab(45.61% -0.0139 -0.1529)
OKLCH	oklch(45.61% 0.153 264.8)
XYZ	xyz(11.1403, 9.0446, 39.6788)
Luminance	0.0905 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4FAB #AB872B

analogous

#2B8FAB #2B4FAB #472BAB

triadic

#2B4FAB #AB2B4F #4FAB2B

tetradic

#2B4FAB #AB2B8F #AB872B #2BAB47

square

#2B4FAB #AB2B8F #AB872B #2BAB47

split-complementary

#2B4FAB #AB472B #8FAB2B

monochromatic

#122249 #1F387A #2B4FAB #436BD0 #7491DC

Accessibility & contrast

On white

7.48

#2B4FAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#2B4FAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4FAB

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4FAB	#FFFFFF	#000000	##FFFFFF
##2B4FAB	1.00	7.48	2.81	7.48
#FFFFFF	7.48	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#085BAE

Deuteranopia (green-blind)

#004FA9

Tritanopia (blue-blind)

#006575

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #2b4fab;
/* rgb */ color: rgb(43, 79, 171);
/* oklch */ color: oklch(45.6% 0.153 264.8);

Tailwind

colors: {
  custom: {
    50: '#777fc5',
    500: '#2b4fab',
    950: '#000000',
  },
}

SCSS

$custom: #2b4fab;
$custom-light: #777fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4fab",
  "rgb": {
    "r": 43,
    "g": 79,
    "b": 171
  },
  "hsl": {
    "h": 223.125,
    "s": 59.813,
    "l": 41.961
  },
  "oklch": {
    "l": 0.45613,
    "c": 0.15348,
    "h": 264.8
  },
  "luminance": 0.09046
}

Semantic roles & 50–950 ramp

primary

#2B4FAB

secondary

#C4AC6E

accent

#B645E3

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2B4FAB

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

Preview Lab → · Contrast checker → · Palette generator →