#337CBE#337CBE

#337CBE is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.2% C 0.125 H 249.0°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#337CBE
RGB	rgb(51, 124, 190)
HSL	hsl(208, 58%, 47%)
HSV	hsv(208, 73%, 75%)
CMYK	cmyk(73.2%, 34.7%, 0%, 25.5%)
CIE-LAB	lab(50.49, -0.20, -41.08)
CIE-LCH	lch(50.49, 41.08, 269.71°)
OKLab	oklab(57.22% -0.0447 -0.1167)
OKLCH	oklch(57.22% 0.125 249)
XYZ	xyz(17.8636, 18.8348, 51.3992)
Luminance	0.1884 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337CBE #BE7533

analogous

#33BEBA #337CBE #3337BE

triadic

#337CBE #BE337C #7CBE33

tetradic

#337CBE #BA33BE #BE7533 #37BE33

square

#337CBE #BA33BE #BE7533 #37BE33

split-complementary

#337CBE #BE3337 #BEBA33

monochromatic

#193D5E #265D8E #337CBE #5B9AD3 #8BB8E0

Accessibility & contrast

On white

4.40

#337CBE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#337CBE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337CBE

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337CBE	#FFFFFF	#000000	##000000
##337CBE	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7FC1

Deuteranopia (green-blind)

#4A72BD

Tritanopia (blue-blind)

#008C94

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #337cbe;
/* rgb */ color: rgb(51, 124, 190);
/* oklch */ color: oklch(57.2% 0.125 249.0);

Tailwind

colors: {
  custom: {
    50: '#7ca1d2',
    500: '#337cbe',
    950: '#000000',
  },
}

SCSS

$custom: #337cbe;
$custom-light: #7ca1d2;
$custom-dark: #000000;

JSON

{
  "hex": "#337cbe",
  "rgb": {
    "r": 51,
    "g": 124,
    "b": 190
  },
  "hsl": {
    "h": 208.489,
    "s": 57.676,
    "l": 47.255
  },
  "oklch": {
    "l": 0.57216,
    "c": 0.125,
    "h": 249
  },
  "luminance": 0.18837
}

Semantic roles & 50–950 ramp

primary

#337CBE

secondary

#CAA583

accent

#9047E1

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #337CBE

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

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