#37598B#37598B

#37598B is a mid, moderate blue. Relative luminance 0.098; OKLCH L 46.2% C 0.091 H 257.9°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).

Color values

HEX#37598B
RGBrgb(55, 89, 139)
HSLhsl(216, 43%, 38%)
HSVhsv(216, 60%, 55%)
CMYKcmyk(60.4%, 36%, 0%, 45.5%)
CIE-LABlab(37.52, 3.83, -31.49)
CIE-LCHlch(37.52, 31.72, 276.94°)
OKLaboklab(46.23% -0.0191 -0.0891)
OKLCHoklch(46.23% 0.091 257.9)
XYZxyz(9.8065, 9.8202, 25.7998)
Luminance0.0982 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#37598B #8B6937
analogous
#37838B #37598B #3F378B
triadic
#37598B #8B3759 #598B37
tetradic
#37598B #8B3783 #8B6937 #378B3F
square
#37598B #8B3783 #8B6937 #378B3F
split-complementary
#37598B #8B3F37 #838B37
monochromatic
#142133 #263D5F #37598B #4875B7 #7496C8

Accessibility & contrast

On white

7.08
#37598B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.96
#37598B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37598B
7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##37598B#FFFFFF#000000##FFFFFF
##37598B1.007.082.967.08
#FFFFFF7.081.0021.001.00
#0000002.9621.001.0021.00
##FFFFFF7.081.0021.001.00

Color blindness preview

Protanopia (red-blind)
#445D8D
Deuteranopia (green-blind)
#39558A
Tritanopia (blue-blind)
#00646B
Achromatopsia (no color)
#585858

Design tokens & code

CSS
--color: #37598b;
/* rgb */ color: rgb(55, 89, 139);
/* oklch */ color: oklch(46.2% 0.091 257.9);
Tailwind
colors: {
  custom: {
    50: '#7587ad',
    500: '#37598b',
    950: '#000000',
  },
}
SCSS
$custom: #37598b;
$custom-light: #7587ad;
$custom-dark: #000000;
JSON
{
  "hex": "#37598b",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 139
  },
  "hsl": {
    "h": 215.714,
    "s": 43.299,
    "l": 38.039
  },
  "oklch": {
    "l": 0.4623,
    "c": 0.09111,
    "h": 257.9
  },
  "luminance": 0.09821
}

Semantic roles & 50–950 ramp

primary
#37598B
secondary
#B1956D
accent
#A055D3
background
#F7F8FA
surface
#EDEFF4
border
#C8CACE
text
#090B10
muted
#7B7C7F

Preview Lab

Preview with #37598B

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

Preview Lab → · Contrast checker → · Palette generator →

#37598B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva