#2B3773#2B3773

#2B3773 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 36.1% C 0.104 H 271.8°. Best body text is #FFFFFF at 11.07:1 contrast (WCAG AA passes).

Color values

HEX	#2B3773
RGB	rgb(43, 55, 115)
HSL	hsl(230, 46%, 31%)
HSV	hsv(230, 63%, 45%)
CMYK	cmyk(62.6%, 52.2%, 0%, 54.9%)
CIE-LAB	lab(25.21, 15.25, -36.21)
CIE-LCH	lch(25.21, 39.29, 292.84°)
OKLab	oklab(36.1% 0.0032 -0.1036)
OKLCH	oklch(36.1% 0.104 271.8)
XYZ	xyz(5.4559, 4.4833, 16.7942)
Luminance	0.0448 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3773 #73672B

analogous

#2B5B73 #2B3773 #432B73

triadic

#2B3773 #732B37 #37732B

tetradic

#2B3773 #732B5B #73672B #2B7343

square

#2B3773 #732B5B #73672B #2B7343

split-complementary

#2B3773 #73432B #5B732B

monochromatic

#0A0C1A #1A2246 #2B3773 #3C4CA0 #5869C1

Accessibility & contrast

On white

11.07

#2B3773 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#2B3773 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3773

11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3773	#FFFFFF	#000000	##FFFFFF
##2B3773	1.00	11.07	1.90	11.07
#FFFFFF	11.07	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#173F75

Deuteranopia (green-blind)

#093972

Tritanopia (blue-blind)

#00454F

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2b3773;
/* rgb */ color: rgb(43, 55, 115);
/* oklch */ color: oklch(36.1% 0.104 271.8);

Tailwind

colors: {
  custom: {
    50: '#6c6d9c',
    500: '#2b3773',
    950: '#000000',
  },
}

SCSS

$custom: #2b3773;
$custom-light: #6c6d9c;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3773",
  "rgb": {
    "r": 43,
    "g": 55,
    "b": 115
  },
  "hsl": {
    "h": 230,
    "s": 45.57,
    "l": 30.98
  },
  "oklch": {
    "l": 0.36099,
    "c": 0.10363,
    "h": 271.8
  },
  "luminance": 0.04484
}

Semantic roles & 50–950 ramp

primary

#2B3773

secondary

#A59755

accent

#BF53D5

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #2B3773

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

Preview Lab → · Contrast checker → · Palette generator →