#37599F#37599F

#37599F is a mid, moderate blue. Relative luminance 0.105; OKLCH L 47.5% C 0.120 H 263.1°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#37599F
RGB	rgb(55, 89, 159)
HSL	hsl(220, 49%, 42%)
HSV	hsv(220, 65%, 62%)
CMYK	cmyk(65.4%, 44%, 0%, 37.6%)
CIE-LAB	lab(38.65, 11.03, -41.74)
CIE-LCH	lch(38.65, 43.17, 284.80°)
OKLab	oklab(47.48% -0.0144 -0.1191)
OKLCH	oklch(47.48% 0.12 263.1)
XYZ	xyz(11.4037, 10.4591, 34.2120)
Luminance	0.1046 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37599F #9F7D37

analogous

#378D9F #37599F #49379F

triadic

#37599F #9F3759 #599F37

tetradic

#37599F #9F378D #9F7D37 #379F49

square

#37599F #9F378D #9F7D37 #379F49

split-complementary

#37599F #9F4937 #8D9F37

monochromatic

#182644 #274072 #37599F #5176C3 #7E9AD2

Accessibility & contrast

On white

6.79

#37599F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#37599F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37599F

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37599F	#FFFFFF	#000000	##FFFFFF
##37599F	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3860A2

Deuteranopia (green-blind)

#28579E

Tritanopia (blue-blind)

#006974

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #37599f;
/* rgb */ color: rgb(55, 89, 159);
/* oklch */ color: oklch(47.5% 0.120 263.1);

Tailwind

colors: {
  custom: {
    50: '#7987bc',
    500: '#37599f',
    950: '#000000',
  },
}

SCSS

$custom: #37599f;
$custom-light: #7987bc;
$custom-dark: #000000;

JSON

{
  "hex": "#37599f",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 159
  },
  "hsl": {
    "h": 220.385,
    "s": 48.598,
    "l": 41.961
  },
  "oklch": {
    "l": 0.4748,
    "c": 0.11997,
    "h": 263.1
  },
  "luminance": 0.1046
}

Semantic roles & 50–950 ramp

primary

#37599F

secondary

#BCA576

accent

#AC50D8

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #37599F

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

Preview Lab → · Contrast checker → · Palette generator →