#37599E#37599E

#37599E is a mid, moderate blue. Relative luminance 0.104; OKLCH L 47.4% C 0.119 H 262.9°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#37599E
RGB	rgb(55, 89, 158)
HSL	hsl(220, 48%, 42%)
HSV	hsv(220, 65%, 62%)
CMYK	cmyk(65.2%, 43.7%, 0%, 38%)
CIE-LAB	lab(38.59, 10.66, -41.23)
CIE-LCH	lch(38.59, 42.59, 284.50°)
OKLab	oklab(47.41% -0.0146 -0.1176)
OKLCH	oklch(47.41% 0.119 262.9)
XYZ	xyz(11.3173, 10.4246, 33.7568)
Luminance	0.1043 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37599E #9E7C37

analogous

#378D9E #37599E #49379E

triadic

#37599E #9E3759 #599E37

tetradic

#37599E #9E378D #9E7C37 #379E49

square

#37599E #9E378D #9E7C37 #379E49

split-complementary

#37599E #9E4937 #8D9E37

monochromatic

#172643 #273F71 #37599E #5076C2 #7D99D2

Accessibility & contrast

On white

6.81

#37599E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#37599E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37599E

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37599E	#FFFFFF	#000000	##FFFFFF
##37599E	1.00	6.81	3.09	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3960A1

Deuteranopia (green-blind)

#29569D

Tritanopia (blue-blind)

#006974

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #37599e;
/* rgb */ color: rgb(55, 89, 158);
/* oklch */ color: oklch(47.4% 0.119 262.9);

Tailwind

colors: {
  custom: {
    50: '#7887bb',
    500: '#37599e',
    950: '#000000',
  },
}

SCSS

$custom: #37599e;
$custom-light: #7887bb;
$custom-dark: #000000;

JSON

{
  "hex": "#37599e",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 158
  },
  "hsl": {
    "h": 220.194,
    "s": 48.357,
    "l": 41.765
  },
  "oklch": {
    "l": 0.47414,
    "c": 0.11853,
    "h": 262.9
  },
  "luminance": 0.10426
}

Semantic roles & 50–950 ramp

primary

#37599E

secondary

#BBA476

accent

#AB50D8

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #37599E

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

Preview Lab → · Contrast checker → · Palette generator →