#337FC5#337FC5

#337FC5 is a mid, vivid cyan. Relative luminance 0.199; OKLCH L 58.3% C 0.131 H 249.6°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#337FC5
RGB	rgb(51, 127, 197)
HSL	hsl(209, 59%, 49%)
HSV	hsv(209, 74%, 77%)
CMYK	cmyk(74.1%, 35.5%, 0%, 22.7%)
CIE-LAB	lab(51.74, 0.53, -43.12)
CIE-LCH	lch(51.74, 43.12, 270.71°)
OKLab	oklab(58.31% -0.0456 -0.1226)
OKLCH	oklch(58.31% 0.131 249.6)
XYZ	xyz(19.0288, 19.9116, 55.6529)
Luminance	0.1991 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337FC5 #C57933

analogous

#33C5C2 #337FC5 #3336C5

triadic

#337FC5 #C5337F #7FC533

tetradic

#337FC5 #C233C5 #C57933 #36C533

square

#337FC5 #C233C5 #C57933 #36C533

split-complementary

#337FC5 #C53336 #C5C233

monochromatic

#1A4064 #266094 #337FC5 #5F9DD6 #90BBE2

Accessibility & contrast

On white

4.21

#337FC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#337FC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337FC5

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337FC5	#FFFFFF	#000000	##000000
##337FC5	1.00	4.21	4.98	4.98
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F83C8

Deuteranopia (green-blind)

#4975C4

Tritanopia (blue-blind)

#009099

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #337fc5;
/* rgb */ color: rgb(51, 127, 197);
/* oklch */ color: oklch(58.3% 0.131 249.6);

Tailwind

colors: {
  custom: {
    50: '#7ea3d7',
    500: '#337fc5',
    950: '#000000',
  },
}

SCSS

$custom: #337fc5;
$custom-light: #7ea3d7;
$custom-dark: #000000;

JSON

{
  "hex": "#337fc5",
  "rgb": {
    "r": 51,
    "g": 127,
    "b": 197
  },
  "hsl": {
    "h": 208.767,
    "s": 58.871,
    "l": 48.627
  },
  "oklch": {
    "l": 0.5831,
    "c": 0.13086,
    "h": 249.6
  },
  "luminance": 0.19914
}

Semantic roles & 50–950 ramp

primary

#337FC5

secondary

#CDA887

accent

#9146E2

background

#F8FAFD

surface

#EFF3FA

border

#CACDD3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #337FC5

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

Preview Lab → · Contrast checker → · Palette generator →