#37549B#37549B

#37549B is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.1% C 0.120 H 265.3°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#37549B
RGB	rgb(55, 84, 155)
HSL	hsl(223, 48%, 41%)
HSV	hsv(223, 65%, 61%)
CMYK	cmyk(64.5%, 45.8%, 0%, 39.2%)
CIE-LAB	lab(36.96, 12.83, -42.04)
CIE-LCH	lch(36.96, 43.96, 286.98°)
OKLab	oklab(46.1% -0.0099 -0.1201)
OKLCH	oklch(46.1% 0.12 265.3)
XYZ	xyz(10.6602, 9.5185, 32.2795)
Luminance	0.0952 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37549B #9B7E37

analogous

#37869B #37549B #4C379B

triadic

#37549B #9B3754 #549B37

tetradic

#37549B #9B3786 #9B7E37 #379B4C

square

#37549B #9B3786 #9B7E37 #379B4C

split-complementary

#37549B #9B4C37 #869B37

monochromatic

#172341 #273C6E #37549B #4F70C0 #7C94D0

Accessibility & contrast

On white

7.23

#37549B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#37549B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37549B

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37549B	#FFFFFF	#000000	##FFFFFF
##37549B	1.00	7.23	2.90	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#325C9E

Deuteranopia (green-blind)

#22539A

Tritanopia (blue-blind)

#006470

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #37549b;
/* rgb */ color: rgb(55, 84, 155);
/* oklch */ color: oklch(46.1% 0.120 265.3);

Tailwind

colors: {
  custom: {
    50: '#7883b9',
    500: '#37549b',
    950: '#000000',
  },
}

SCSS

$custom: #37549b;
$custom-light: #7883b9;
$custom-dark: #000000;

JSON

{
  "hex": "#37549b",
  "rgb": {
    "r": 55,
    "g": 84,
    "b": 155
  },
  "hsl": {
    "h": 222.6,
    "s": 47.619,
    "l": 41.176
  },
  "oklch": {
    "l": 0.46102,
    "c": 0.12047,
    "h": 265.3
  },
  "luminance": 0.09519
}

Semantic roles & 50–950 ramp

primary

#37549B

secondary

#BAA574

accent

#B051D7

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0A11

muted

#7C7C80

Preview Lab

Preview with #37549B

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

Preview Lab → · Contrast checker → · Palette generator →