#37637E#37637E

#37637E is a mid, moderate cyan. Relative luminance 0.112; OKLCH L 48.0% C 0.065 H 237.2°. Best body text is #FFFFFF at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#37637E
RGB	rgb(55, 99, 126)
HSL	hsl(203, 39%, 35%)
HSV	hsv(203, 56%, 49%)
CMYK	cmyk(56.3%, 21.4%, 0%, 50.6%)
CIE-LAB	lab(39.98, -6.84, -19.74)
CIE-LCH	lch(39.98, 20.89, 250.89°)
OKLab	oklab(47.97% -0.0354 -0.055)
OKLCH	oklch(47.97% 0.065 237.2)
XYZ	xyz(9.8019, 11.2414, 21.3879)
Luminance	0.1124 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37637E #7E5237

analogous

#377E75 #37637E #373F7E

triadic

#37637E #7E3763 #637E37

tetradic

#37637E #75377E #7E5237 #3F7E37

square

#37637E #75377E #7E5237 #3F7E37

split-complementary

#37637E #7E373F #7E7537

monochromatic

#122029 #244253 #37637E #4A84A9 #6FA1C0

Accessibility & contrast

On white

6.46

#37637E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#37637E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37637E

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37637E	#FFFFFF	#000000	##FFFFFF
##37637E	1.00	6.46	3.25	6.46
#FFFFFF	6.46	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57627F

Deuteranopia (green-blind)

#4D5B7E

Tritanopia (blue-blind)

#046A6C

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #37637e;
/* rgb */ color: rgb(55, 99, 126);
/* oklch */ color: oklch(48.0% 0.065 237.2);

Tailwind

colors: {
  custom: {
    50: '#748fa3',
    500: '#37637e',
    950: '#000000',
  },
}

SCSS

$custom: #37637e;
$custom-light: #748fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#37637e",
  "rgb": {
    "r": 55,
    "g": 99,
    "b": 126
  },
  "hsl": {
    "h": 202.817,
    "s": 39.227,
    "l": 35.49
  },
  "oklch": {
    "l": 0.47965,
    "c": 0.06548,
    "h": 237.2
  },
  "luminance": 0.11242
}

Semantic roles & 50–950 ramp

primary

#37637E

secondary

#A98168

accent

#8659CF

background

#F7F8FA

surface

#EDF0F3

border

#C8CBCD

text

#080C0F

muted

#7B7D7F

Preview Lab

Preview with #37637E

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

Preview Lab → · Contrast checker → · Palette generator →