#337CBD#337CBD

#337CBD is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.2% C 0.124 H 248.7°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#337CBD
RGB	rgb(51, 124, 189)
HSL	hsl(208, 58%, 47%)
HSV	hsv(208, 73%, 74%)
CMYK	cmyk(73%, 34.4%, 0%, 25.9%)
CIE-LAB	lab(50.44, -0.57, -40.59)
CIE-LCH	lch(50.44, 40.59, 269.20°)
OKLab	oklab(57.16% -0.045 -0.1153)
OKLCH	oklch(57.16% 0.124 248.7)
XYZ	xyz(17.7547, 18.7912, 50.8256)
Luminance	0.1879 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337CBD #BD7433

analogous

#33BDB9 #337CBD #3337BD

triadic

#337CBD #BD337C #7CBD33

tetradic

#337CBD #B933BD #BD7433 #37BD33

square

#337CBD #B933BD #BD7433 #37BD33

split-complementary

#337CBD #BD3337 #BDB933

monochromatic

#193D5D #265C8D #337CBD #5B9AD3 #8BB8E0

Accessibility & contrast

On white

4.41

#337CBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#337CBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337CBD

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337CBD	#FFFFFF	#000000	##000000
##337CBD	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7FC0

Deuteranopia (green-blind)

#4B72BC

Tritanopia (blue-blind)

#008B94

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #337cbd;
/* rgb */ color: rgb(51, 124, 189);
/* oklch */ color: oklch(57.2% 0.124 248.7);

Tailwind

colors: {
  custom: {
    50: '#7ca1d1',
    500: '#337cbd',
    950: '#000000',
  },
}

SCSS

$custom: #337cbd;
$custom-light: #7ca1d1;
$custom-dark: #000000;

JSON

{
  "hex": "#337cbd",
  "rgb": {
    "r": 51,
    "g": 124,
    "b": 189
  },
  "hsl": {
    "h": 208.261,
    "s": 57.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.57159,
    "c": 0.12375,
    "h": 248.7
  },
  "luminance": 0.18793
}

Semantic roles & 50–950 ramp

primary

#337CBD

secondary

#CAA482

accent

#8F47E1

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #337CBD

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

Preview Lab → · Contrast checker → · Palette generator →