#337FC1#337FC1

#337FC1 is a mid, vivid cyan. Relative luminance 0.197; OKLCH L 58.1% C 0.126 H 248.2°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#337FC1
RGB	rgb(51, 127, 193)
HSL	hsl(208, 58%, 48%)
HSV	hsv(208, 74%, 76%)
CMYK	cmyk(73.6%, 34.2%, 0%, 24.3%)
CIE-LAB	lab(51.53, -0.92, -41.16)
CIE-LCH	lch(51.53, 41.17, 268.72°)
OKLab	oklab(58.08% -0.0467 -0.1169)
OKLCH	oklch(58.08% 0.126 248.2)
XYZ	xyz(18.5766, 19.7307, 53.2711)
Luminance	0.1973 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337FC1 #C17533

analogous

#33C1BC #337FC1 #3338C1

triadic

#337FC1 #C1337F #7FC133

tetradic

#337FC1 #BC33C1 #C17533 #38C133

square

#337FC1 #BC33C1 #C17533 #38C133

split-complementary

#337FC1 #C13338 #C1BC33

monochromatic

#193F60 #265F91 #337FC1 #5D9DD4 #8DBAE1

Accessibility & contrast

On white

4.25

#337FC1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#337FC1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337FC1

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337FC1	#FFFFFF	#000000	##000000
##337FC1	1.00	4.25	4.95	4.95
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6182C4

Deuteranopia (green-blind)

#4D75C0

Tritanopia (blue-blind)

#008F97

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #337fc1;
/* rgb */ color: rgb(51, 127, 193);
/* oklch */ color: oklch(58.1% 0.126 248.2);

Tailwind

colors: {
  custom: {
    50: '#7da3d4',
    500: '#337fc1',
    950: '#000000',
  },
}

SCSS

$custom: #337fc1;
$custom-light: #7da3d4;
$custom-dark: #000000;

JSON

{
  "hex": "#337fc1",
  "rgb": {
    "r": 51,
    "g": 127,
    "b": 193
  },
  "hsl": {
    "h": 207.887,
    "s": 58.197,
    "l": 47.843
  },
  "oklch": {
    "l": 0.58081,
    "c": 0.1259,
    "h": 248.2
  },
  "luminance": 0.19733
}

Semantic roles & 50–950 ramp

primary

#337FC1

secondary

#CBA584

accent

#8E46E1

background

#F8FAFD

surface

#EFF3FA

border

#CACDD3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #337FC1

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

Preview Lab → · Contrast checker → · Palette generator →