#337DDC#337DDC

#337DDC is a mid, vivid cyan. Relative luminance 0.205; OKLCH L 59.3% C 0.162 H 256.3°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#337DDC
RGB	rgb(51, 125, 220)
HSL	hsl(214, 71%, 53%)
HSV	hsv(214, 77%, 86%)
CMYK	cmyk(76.8%, 43.2%, 0%, 13.7%)
CIE-LAB	lab(52.44, 10.19, -55.05)
CIE-LCH	lch(52.44, 55.98, 280.49°)
OKLab	oklab(59.27% -0.0386 -0.1577)
OKLCH	oklch(59.27% 0.162 256.3)
XYZ	xyz(21.6123, 20.5358, 70.5210)
Luminance	0.2054 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337DDC #DC9233

analogous

#33D1DC #337DDC #3D33DC

triadic

#337DDC #DC337D #7DDC33

tetradic

#337DDC #DC33D1 #DC9233 #33DC3D

square

#337DDC #DC33D1 #DC9233 #33DC3D

split-complementary

#337DDC #DC3D33 #D1DC33

monochromatic

#16447F #1F60B3 #337DDC #679EE5 #9BC0EE

Accessibility & contrast

On white

4.11

#337DDC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#337DDC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337DDC

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337DDC	#FFFFFF	#000000	##000000
##337DDC	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D85E0

Deuteranopia (green-blind)

#2C76DA

Tritanopia (blue-blind)

#0093A2

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #337ddc;
/* rgb */ color: rgb(51, 125, 220);
/* oklch */ color: oklch(59.3% 0.162 256.3);

Tailwind

colors: {
  custom: {
    50: '#82a2e7',
    500: '#337ddc',
    950: '#000000',
  },
}

SCSS

$custom: #337ddc;
$custom-light: #82a2e7;
$custom-dark: #000000;

JSON

{
  "hex": "#337ddc",
  "rgb": {
    "r": 51,
    "g": 125,
    "b": 220
  },
  "hsl": {
    "h": 213.728,
    "s": 70.711,
    "l": 53.137
  },
  "oklch": {
    "l": 0.59271,
    "c": 0.16231,
    "h": 256.3
  },
  "luminance": 0.20538
}

Semantic roles & 50–950 ramp

primary

#337DDC

secondary

#DABA91

accent

#9F3AED

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #337DDC

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

Preview Lab → · Contrast checker → · Palette generator →