#337DCC#337DCC

#337DCC is a mid, vivid cyan. Relative luminance 0.197; OKLCH L 58.3% C 0.142 H 252.7°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#337DCC
RGB	rgb(51, 125, 204)
HSL	hsl(211, 60%, 50%)
HSV	hsv(211, 75%, 80%)
CMYK	cmyk(75%, 38.7%, 0%, 20%)
CIE-LAB	lab(51.53, 4.30, -47.44)
CIE-LCH	lch(51.53, 47.63, 275.17°)
OKLab	oklab(58.27% -0.042 -0.1353)
OKLCH	oklch(58.27% 0.142 252.7)
XYZ	xyz(19.5939, 19.7284, 59.8903)
Luminance	0.1973 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337DCC #CC8233

analogous

#33CACC #337DCC #3533CC

triadic

#337DCC #CC337D #7DCC33

tetradic

#337DCC #CC33CA #CC8233 #33CC35

square

#337DCC #CC33CA #CC8233 #33CC35

split-complementary

#337DCC #CC3533 #CACC33

monochromatic

#1B416A #275F9B #337DCC #649CD8 #95BBE4

Accessibility & contrast

On white

4.25

#337DCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#337DCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337DCC

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337DCC	#FFFFFF	#000000	##000000
##337DCC	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)

#5882CF

Deuteranopia (green-blind)

#4074CA

Tritanopia (blue-blind)

#00909A

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #337dcc;
/* rgb */ color: rgb(51, 125, 204);
/* oklch */ color: oklch(58.3% 0.142 252.7);

Tailwind

colors: {
  custom: {
    50: '#7fa2dc',
    500: '#337dcc',
    950: '#000000',
  },
}

SCSS

$custom: #337dcc;
$custom-light: #7fa2dc;
$custom-dark: #000000;

JSON

{
  "hex": "#337dcc",
  "rgb": {
    "r": 51,
    "g": 125,
    "b": 204
  },
  "hsl": {
    "h": 210.98,
    "s": 60,
    "l": 50
  },
  "oklch": {
    "l": 0.58269,
    "c": 0.14171,
    "h": 252.7
  },
  "luminance": 0.19731
}

Semantic roles & 50–950 ramp

primary

#337DCC

secondary

#D0AF8B

accent

#9645E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #337DCC

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

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