#2B3573#2B3573

#2B3573 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.7% C 0.106 H 272.9°. Best body text is #FFFFFF at 11.29:1 contrast (WCAG AA passes).

Color values

HEX	#2B3573
RGB	rgb(43, 53, 115)
HSL	hsl(232, 46%, 31%)
HSV	hsv(232, 63%, 45%)
CMYK	cmyk(62.6%, 53.9%, 0%, 54.9%)
CIE-LAB	lab(24.63, 16.64, -37.14)
CIE-LCH	lch(24.63, 40.70, 294.14°)
OKLab	oklab(35.66% 0.0054 -0.1063)
OKLCH	oklch(35.66% 0.106 272.9)
XYZ	xyz(5.3629, 4.2972, 16.7632)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3573 #73692B

analogous

#2B5973 #2B3573 #452B73

triadic

#2B3573 #732B35 #35732B

tetradic

#2B3573 #732B59 #73692B #2B7345

square

#2B3573 #732B59 #73692B #2B7345

split-complementary

#2B3573 #73452B #59732B

monochromatic

#0A0C1A #1A2046 #2B3573 #3C4AA0 #5866C1

Accessibility & contrast

On white

11.29

#2B3573 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#2B3573 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3573

11.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3573	#FFFFFF	#000000	##FFFFFF
##2B3573	1.00	11.29	1.86	11.29
#FFFFFF	11.29	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#123E75

Deuteranopia (green-blind)

#013772

Tritanopia (blue-blind)

#00434E

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #2b3573;
/* rgb */ color: rgb(43, 53, 115);
/* oklch */ color: oklch(35.7% 0.106 272.9);

Tailwind

colors: {
  custom: {
    50: '#6c6c9c',
    500: '#2b3573',
    950: '#000000',
  },
}

SCSS

$custom: #2b3573;
$custom-light: #6c6c9c;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3573",
  "rgb": {
    "r": 43,
    "g": 53,
    "b": 115
  },
  "hsl": {
    "h": 231.667,
    "s": 45.57,
    "l": 30.98
  },
  "oklch": {
    "l": 0.35661,
    "c": 0.10649,
    "h": 272.9
  },
  "luminance": 0.04298
}

Semantic roles & 50–950 ramp

primary

#2B3573

secondary

#A59A55

accent

#C353D5

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #2B3573

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

Preview Lab → · Contrast checker → · Palette generator →