#337CAE#337CAE

#337CAE is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.3% C 0.106 H 242.1°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#337CAE
RGB	rgb(51, 124, 174)
HSL	hsl(204, 55%, 44%)
HSV	hsv(204, 71%, 68%)
CMYK	cmyk(70.7%, 28.7%, 0%, 31.8%)
CIE-LAB	lab(49.71, -5.93, -33.10)
CIE-LCH	lch(49.71, 33.62, 259.83°)
OKLab	oklab(56.34% -0.0495 -0.0934)
OKLCH	oklch(56.34% 0.106 242.1)
XYZ	xyz(16.2099, 18.1733, 42.6897)
Luminance	0.1817 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337CAE #AE6533

analogous

#33AEA3 #337CAE #333FAE

triadic

#337CAE #AE337C #7CAE33

tetradic

#337CAE #A333AE #AE6533 #3FAE33

square

#337CAE #A333AE #AE6533 #3FAE33

split-complementary

#337CAE #AE333F #AEA333

monochromatic

#17394F #255A7F #337CAE #529BCC #81B6DA

Accessibility & contrast

On white

4.53

#337CAE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#337CAE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337CAE

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337CAE	#FFFFFF	#000000	##000000
##337CAE	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#657DB0

Deuteranopia (green-blind)

#5471AD

Tritanopia (blue-blind)

#00888D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #337cae;
/* rgb */ color: rgb(51, 124, 174);
/* oklch */ color: oklch(56.3% 0.106 242.1);

Tailwind

colors: {
  custom: {
    50: '#7aa1c6',
    500: '#337cae',
    950: '#000000',
  },
}

SCSS

$custom: #337cae;
$custom-light: #7aa1c6;
$custom-dark: #000000;

JSON

{
  "hex": "#337cae",
  "rgb": {
    "r": 51,
    "g": 124,
    "b": 174
  },
  "hsl": {
    "h": 204.39,
    "s": 54.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.56336,
    "c": 0.10576,
    "h": 242.1
  },
  "luminance": 0.18175
}

Semantic roles & 50–950 ramp

primary

#337CAE

secondary

#C39779

accent

#864ADE

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #337CAE

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

Preview Lab → · Contrast checker → · Palette generator →