#337DC7#337DC7

#337DC7 is a mid, vivid cyan. Relative luminance 0.195; OKLCH L 58.0% C 0.135 H 251.4°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#337DC7
RGB	rgb(51, 125, 199)
HSL	hsl(210, 59%, 49%)
HSV	hsv(210, 74%, 78%)
CMYK	cmyk(74.4%, 37.2%, 0%, 22%)
CIE-LAB	lab(51.26, 2.47, -45.02)
CIE-LCH	lch(51.26, 45.09, 273.14°)
OKLab	oklab(57.97% -0.0433 -0.1282)
OKLCH	oklch(57.97% 0.135 251.4)
XYZ	xyz(19.0038, 19.4924, 56.7826)
Luminance	0.1950 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337DC7 #C77D33

analogous

#33C7C7 #337DC7 #3333C7

triadic

#337DC7 #C7337D #7DC733

tetradic

#337DC7 #C733C7 #C77D33 #33C733

square

#337DC7 #C733C7 #C77D33 #33C733

split-complementary

#337DC7 #C73333 #C7C733

monochromatic

#1A4066 #275E96 #337DC7 #619CD6 #91BAE3

Accessibility & contrast

On white

4.29

#337DC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#337DC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337DC7

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337DC7	#FFFFFF	#000000	##000000
##337DC7	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B82CA

Deuteranopia (green-blind)

#4474C6

Tritanopia (blue-blind)

#008F98

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #337dc7;
/* rgb */ color: rgb(51, 125, 199);
/* oklch */ color: oklch(58.0% 0.135 251.4);

Tailwind

colors: {
  custom: {
    50: '#7ea2d8',
    500: '#337dc7',
    950: '#000000',
  },
}

SCSS

$custom: #337dc7;
$custom-light: #7ea2d8;
$custom-dark: #000000;

JSON

{
  "hex": "#337dc7",
  "rgb": {
    "r": 51,
    "g": 125,
    "b": 199
  },
  "hsl": {
    "h": 210,
    "s": 59.2,
    "l": 49.02
  },
  "oklch": {
    "l": 0.57969,
    "c": 0.13534,
    "h": 251.4
  },
  "luminance": 0.19495
}

Semantic roles & 50–950 ramp

primary

#337DC7

secondary

#CEAB88

accent

#9445E2

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0F14

muted

#7C7E83

Preview Lab

Preview with #337DC7

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

Preview Lab → · Contrast checker → · Palette generator →