#2B4FA3#2B4FA3

#2B4FA3 is a dark, vivid blue. Relative luminance 0.087; OKLCH L 45.0% C 0.142 H 264.1°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#2B4FA3
RGB	rgb(43, 79, 163)
HSL	hsl(222, 58%, 40%)
HSV	hsv(222, 74%, 64%)
CMYK	cmyk(73.6%, 51.5%, 0%, 36.1%)
CIE-LAB	lab(35.50, 17.19, -49.23)
CIE-LCH	lch(35.50, 52.15, 289.25°)
OKLab	oklab(44.99% -0.0147 -0.1415)
OKLCH	oklch(44.99% 0.142 264.1)
XYZ	xyz(10.4008, 8.7488, 35.7838)
Luminance	0.0875 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4FA3 #A37F2B

analogous

#2B8BA3 #2B4FA3 #432BA3

triadic

#2B4FA3 #A32B4F #4FA32B

tetradic

#2B4FA3 #A32B8B #A37F2B #2BA343

square

#2B4FA3 #A32B8B #A37F2B #2BA343

split-complementary

#2B4FA3 #A3432B #8BA32B

monochromatic

#112042 #1E3873 #2B4FA3 #3F69CC #6F8FD9

Accessibility & contrast

On white

7.64

#2B4FA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#2B4FA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4FA3

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4FA3	#FFFFFF	#000000	##FFFFFF
##2B4FA3	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B59A6

Deuteranopia (green-blind)

#004EA1

Tritanopia (blue-blind)

#006371

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #2b4fa3;
/* rgb */ color: rgb(43, 79, 163);
/* oklch */ color: oklch(45.0% 0.142 264.1);

Tailwind

colors: {
  custom: {
    50: '#757fbf',
    500: '#2b4fa3',
    950: '#000000',
  },
}

SCSS

$custom: #2b4fa3;
$custom-light: #757fbf;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4fa3",
  "rgb": {
    "r": 43,
    "g": 79,
    "b": 163
  },
  "hsl": {
    "h": 222,
    "s": 58.252,
    "l": 40.392
  },
  "oklch": {
    "l": 0.44994,
    "c": 0.14229,
    "h": 264.1
  },
  "luminance": 0.0875
}

Semantic roles & 50–950 ramp

primary

#2B4FA3

secondary

#C0A66A

accent

#B346E1

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #2B4FA3

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

Preview Lab → · Contrast checker → · Palette generator →