#37549D#37549D

#37549D is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.2% C 0.123 H 265.5°. Best body text is #FFFFFF at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#37549D
RGB	rgb(55, 84, 157)
HSL	hsl(223, 48%, 42%)
HSV	hsv(223, 65%, 62%)
CMYK	cmyk(65%, 46.5%, 0%, 38.4%)
CIE-LAB	lab(37.09, 13.56, -43.04)
CIE-LCH	lch(37.09, 45.13, 287.49°)
OKLab	oklab(46.24% -0.0096 -0.123)
OKLCH	oklch(46.24% 0.123 265.5)
XYZ	xyz(10.8296, 9.5862, 33.1714)
Luminance	0.0959 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37549D #9D8037

analogous

#37879D #37549D #4D379D

triadic

#37549D #9D3754 #549D37

tetradic

#37549D #9D3787 #9D8037 #379D4D

square

#37549D #9D3787 #9D8037 #379D4D

split-complementary

#37549D #9D4D37 #879D37

monochromatic

#172442 #273C70 #37549D #5070C2 #7D95D1

Accessibility & contrast

On white

7.20

#37549D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#37549D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37549D

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37549D	#FFFFFF	#000000	##FFFFFF
##37549D	1.00	7.20	2.92	7.20
#FFFFFF	7.20	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#305CA0

Deuteranopia (green-blind)

#1F539B

Tritanopia (blue-blind)

#006571

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #37549d;
/* rgb */ color: rgb(55, 84, 157);
/* oklch */ color: oklch(46.2% 0.123 265.5);

Tailwind

colors: {
  custom: {
    50: '#7883ba',
    500: '#37549d',
    950: '#000000',
  },
}

SCSS

$custom: #37549d;
$custom-light: #7883ba;
$custom-dark: #000000;

JSON

{
  "hex": "#37549d",
  "rgb": {
    "r": 55,
    "g": 84,
    "b": 157
  },
  "hsl": {
    "h": 222.941,
    "s": 48.113,
    "l": 41.569
  },
  "oklch": {
    "l": 0.46238,
    "c": 0.12337,
    "h": 265.5
  },
  "luminance": 0.09587
}

Semantic roles & 50–950 ramp

primary

#37549D

secondary

#BBA775

accent

#B150D8

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #37549D

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

Preview Lab → · Contrast checker → · Palette generator →