#37599C#37599C

#37599C is a mid, moderate blue. Relative luminance 0.104; OKLCH L 47.3% C 0.116 H 262.5°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#37599C
RGB	rgb(55, 89, 156)
HSL	hsl(220, 48%, 41%)
HSV	hsv(220, 65%, 61%)
CMYK	cmyk(64.7%, 42.9%, 0%, 38.8%)
CIE-LAB	lab(38.47, 9.94, -40.23)
CIE-LCH	lch(38.47, 41.44, 283.87°)
OKLab	oklab(47.28% -0.015 -0.1147)
OKLCH	oklch(47.28% 0.116 262.5)
XYZ	xyz(11.1466, 10.3563, 32.8576)
Luminance	0.1036 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37599C #9C7A37

analogous

#378C9C #37599C #48379C

triadic

#37599C #9C3759 #599C37

tetradic

#37599C #9C378C #9C7A37 #379C48

square

#37599C #9C378C #9C7A37 #379C48

split-complementary

#37599C #9C4837 #8C9C37

monochromatic

#172542 #273F6F #37599C #4F76C1 #7C99D1

Accessibility & contrast

On white

6.84

#37599C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#37599C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37599C

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37599C	#FFFFFF	#000000	##FFFFFF
##37599C	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A609F

Deuteranopia (green-blind)

#2B569B

Tritanopia (blue-blind)

#006873

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #37599c;
/* rgb */ color: rgb(55, 89, 156);
/* oklch */ color: oklch(47.3% 0.116 262.5);

Tailwind

colors: {
  custom: {
    50: '#7887b9',
    500: '#37599c',
    950: '#000000',
  },
}

SCSS

$custom: #37599c;
$custom-light: #7887b9;
$custom-dark: #000000;

JSON

{
  "hex": "#37599c",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 156
  },
  "hsl": {
    "h": 219.802,
    "s": 47.867,
    "l": 41.373
  },
  "oklch": {
    "l": 0.47284,
    "c": 0.11565,
    "h": 262.5
  },
  "luminance": 0.10357
}

Semantic roles & 50–950 ramp

primary

#37599C

secondary

#BAA375

accent

#AA50D7

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0B11

muted

#7C7C80

Preview Lab

Preview with #37599C

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

Preview Lab → · Contrast checker → · Palette generator →