#37558F#37558F

#37558F is a mid, moderate blue. Relative luminance 0.093; OKLCH L 45.5% C 0.102 H 262.4°. Best body text is #FFFFFF at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#37558F
RGB	rgb(55, 85, 143)
HSL	hsl(220, 44%, 39%)
HSV	hsv(220, 62%, 56%)
CMYK	cmyk(61.5%, 40.6%, 0%, 43.9%)
CIE-LAB	lab(36.54, 7.84, -35.47)
CIE-LCH	lch(36.54, 36.32, 282.46°)
OKLab	oklab(45.54% -0.0134 -0.1008)
OKLCH	oklch(45.54% 0.102 262.4)
XYZ	xyz(9.7803, 9.2916, 27.2593)
Luminance	0.0929 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37558F #8F7137

analogous

#37818F #37558F #45378F

triadic

#37558F #8F3755 #558F37

tetradic

#37558F #8F3781 #8F7137 #378F45

square

#37558F #8F3781 #8F7137 #378F45

split-complementary

#37558F #8F4537 #818F37

monochromatic

#152037 #263B63 #37558F #4A70B9 #7693CA

Accessibility & contrast

On white

7.35

#37558F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#37558F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37558F

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37558F	#FFFFFF	#000000	##FFFFFF
##37558F	1.00	7.35	2.86	7.35
#FFFFFF	7.35	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C5A91

Deuteranopia (green-blind)

#30528E

Tritanopia (blue-blind)

#00626B

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #37558f;
/* rgb */ color: rgb(55, 85, 143);
/* oklch */ color: oklch(45.5% 0.102 262.4);

Tailwind

colors: {
  custom: {
    50: '#7684b0',
    500: '#37558f',
    950: '#000000',
  },
}

SCSS

$custom: #37558f;
$custom-light: #7684b0;
$custom-dark: #000000;

JSON

{
  "hex": "#37558f",
  "rgb": {
    "r": 55,
    "g": 85,
    "b": 143
  },
  "hsl": {
    "h": 219.545,
    "s": 44.444,
    "l": 38.824
  },
  "oklch": {
    "l": 0.45543,
    "c": 0.10165,
    "h": 262.4
  },
  "luminance": 0.09292
}

Semantic roles & 50–950 ramp

primary

#37558F

secondary

#B39C6F

accent

#A854D4

background

#F7F8FA

surface

#EDEFF5

border

#C8CACF

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #37558F

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

Preview Lab → · Contrast checker → · Palette generator →