#337CB8#337CB8

#337CB8 is a mid, moderate cyan. Relative luminance 0.186; OKLCH L 56.9% C 0.118 H 246.7°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#337CB8
RGB	rgb(51, 124, 184)
HSL	hsl(207, 57%, 46%)
HSV	hsv(207, 72%, 72%)
CMYK	cmyk(72.3%, 32.6%, 0%, 27.8%)
CIE-LAB	lab(50.19, -2.37, -38.11)
CIE-LCH	lch(50.19, 38.19, 266.44°)
OKLab	oklab(56.88% -0.0464 -0.108)
OKLCH	oklch(56.88% 0.118 246.7)
XYZ	xyz(17.2213, 18.5779, 48.0164)
Luminance	0.1858 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337CB8 #B86F33

analogous

#33B8B1 #337CB8 #3339B8

triadic

#337CB8 #B8337C #7CB833

tetradic

#337CB8 #B133B8 #B86F33 #39B833

square

#337CB8 #B133B8 #B86F33 #39B833

split-complementary

#337CB8 #B83339 #B8B133

monochromatic

#183B58 #265C88 #337CB8 #589AD1 #88B7DE

Accessibility & contrast

On white

4.45

#337CB8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#337CB8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337CB8

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337CB8	#FFFFFF	#000000	##000000
##337CB8	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#617EBB

Deuteranopia (green-blind)

#4E72B7

Tritanopia (blue-blind)

#008A91

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #337cb8;
/* rgb */ color: rgb(51, 124, 184);
/* oklch */ color: oklch(56.9% 0.118 246.7);

Tailwind

colors: {
  custom: {
    50: '#7ba1cd',
    500: '#337cb8',
    950: '#000000',
  },
}

SCSS

$custom: #337cb8;
$custom-light: #7ba1cd;
$custom-dark: #000000;

JSON

{
  "hex": "#337cb8",
  "rgb": {
    "r": 51,
    "g": 124,
    "b": 184
  },
  "hsl": {
    "h": 207.068,
    "s": 56.596,
    "l": 46.078
  },
  "oklch": {
    "l": 0.56877,
    "c": 0.1176,
    "h": 246.7
  },
  "luminance": 0.1858
}

Semantic roles & 50–950 ramp

primary

#337CB8

secondary

#C8A07F

accent

#8C48E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #337CB8

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

Preview Lab → · Contrast checker → · Palette generator →