#37539C#37539C

#37539C is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.0% C 0.123 H 265.9°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#37539C
RGB	rgb(55, 83, 156)
HSL	hsl(223, 48%, 41%)
HSV	hsv(223, 65%, 61%)
CMYK	cmyk(64.7%, 46.8%, 0%, 38.8%)
CIE-LAB	lab(36.74, 13.86, -43.00)
CIE-LCH	lch(36.74, 45.18, 287.86°)
OKLab	oklab(45.95% -0.0087 -0.1229)
OKLCH	oklch(45.95% 0.123 265.9)
XYZ	xyz(10.6675, 9.3981, 32.6979)
Luminance	0.0940 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37539C #9C8037

analogous

#37869C #37539C #4E379C

triadic

#37539C #9C3753 #539C37

tetradic

#37539C #9C3786 #9C8037 #379C4E

square

#37539C #9C3786 #9C8037 #379C4E

split-complementary

#37539C #9C4E37 #869C37

monochromatic

#172342 #273B6F #37539C #4F6FC1 #7C94D1

Accessibility & contrast

On white

7.29

#37539C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#37539C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37539C

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37539C	#FFFFFF	#000000	##FFFFFF
##37539C	1.00	7.29	2.88	7.29
#FFFFFF	7.29	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5B9F

Deuteranopia (green-blind)

#1E529A

Tritanopia (blue-blind)

#006470

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #37539c;
/* rgb */ color: rgb(55, 83, 156);
/* oklch */ color: oklch(46.0% 0.123 265.9);

Tailwind

colors: {
  custom: {
    50: '#7882ba',
    500: '#37539c',
    950: '#000000',
  },
}

SCSS

$custom: #37539c;
$custom-light: #7882ba;
$custom-dark: #000000;

JSON

{
  "hex": "#37539c",
  "rgb": {
    "r": 55,
    "g": 83,
    "b": 156
  },
  "hsl": {
    "h": 223.366,
    "s": 47.867,
    "l": 41.373
  },
  "oklch": {
    "l": 0.4595,
    "c": 0.12321,
    "h": 265.9
  },
  "luminance": 0.09399
}

Semantic roles & 50–950 ramp

primary

#37539C

secondary

#BAA775

accent

#B250D7

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0A11

muted

#7C7C80

Preview Lab

Preview with #37539C

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

Preview Lab → · Contrast checker → · Palette generator →