#37558D#37558D

#37558D is a mid, moderate blue. Relative luminance 0.092; OKLCH L 45.4% C 0.099 H 261.9°. Best body text is #FFFFFF at 7.38:1 contrast (WCAG AA passes).

Color values

HEX	#37558D
RGB	rgb(55, 85, 141)
HSL	hsl(219, 44%, 38%)
HSV	hsv(219, 61%, 55%)
CMYK	cmyk(61%, 39.7%, 0%, 44.7%)
CIE-LAB	lab(36.43, 7.12, -34.43)
CIE-LCH	lch(36.43, 35.16, 281.68°)
OKLab	oklab(45.42% -0.0139 -0.0977)
OKLCH	oklch(45.42% 0.099 261.9)
XYZ	xyz(9.6301, 9.2315, 26.4685)
Luminance	0.0923 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37558D #8D6F37

analogous

#37808D #37558D #44378D

triadic

#37558D #8D3755 #558D37

tetradic

#37558D #8D3780 #8D6F37 #378D44

square

#37558D #8D3780 #8D6F37 #378D44

split-complementary

#37558D #8D4437 #808D37

monochromatic

#152035 #263A61 #37558D #4970B8 #7592C9

Accessibility & contrast

On white

7.38

#37558D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#37558D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37558D

7.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37558D	#FFFFFF	#000000	##FFFFFF
##37558D	1.00	7.38	2.85	7.38
#FFFFFF	7.38	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D5A8F

Deuteranopia (green-blind)

#32528C

Tritanopia (blue-blind)

#00626A

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #37558d;
/* rgb */ color: rgb(55, 85, 141);
/* oklch */ color: oklch(45.4% 0.099 261.9);

Tailwind

colors: {
  custom: {
    50: '#7684ae',
    500: '#37558d',
    950: '#000000',
  },
}

SCSS

$custom: #37558d;
$custom-light: #7684ae;
$custom-dark: #000000;

JSON

{
  "hex": "#37558d",
  "rgb": {
    "r": 55,
    "g": 85,
    "b": 141
  },
  "hsl": {
    "h": 219.07,
    "s": 43.878,
    "l": 38.431
  },
  "oklch": {
    "l": 0.45418,
    "c": 0.09871,
    "h": 261.9
  },
  "luminance": 0.09232
}

Semantic roles & 50–950 ramp

primary

#37558D

secondary

#B29A6E

accent

#A754D4

background

#F7F8FA

surface

#EDEFF4

border

#C8CACE

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #37558D

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

Preview Lab → · Contrast checker → · Palette generator →