#337BCE#337BCE

#337BCE is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 57.9% C 0.146 H 254.2°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#337BCE
RGB	rgb(51, 123, 206)
HSL	hsl(212, 61%, 50%)
HSV	hsv(212, 75%, 81%)
CMYK	cmyk(75.2%, 40.3%, 0%, 19.2%)
CIE-LAB	lab(51.06, 6.25, -49.32)
CIE-LCH	lch(51.06, 49.71, 277.23°)
OKLab	oklab(57.94% -0.0398 -0.1409)
OKLCH	oklch(57.94% 0.146 254.2)
XYZ	xyz(19.5846, 19.3237, 61.0782)
Luminance	0.1933 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337BCE #CE8633

analogous

#33C9CE #337BCE #3833CE

triadic

#337BCE #CE337B #7BCE33

tetradic

#337BCE #CE33C9 #CE8633 #33CE38

square

#337BCE #CE33C9 #CE8633 #33CE38

split-complementary

#337BCE #CE3833 #C9CE33

monochromatic

#1A406D #265E9E #337BCE #649BDA #96BBE6

Accessibility & contrast

On white

4.32

#337BCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#337BCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337BCE

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337BCE	#FFFFFF	#000000	##000000
##337BCE	1.00	4.32	4.87	4.87
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5381D1

Deuteranopia (green-blind)

#3A73CC

Tritanopia (blue-blind)

#008F9A

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #337bce;
/* rgb */ color: rgb(51, 123, 206);
/* oklch */ color: oklch(57.9% 0.146 254.2);

Tailwind

colors: {
  custom: {
    50: '#80a0dd',
    500: '#337bce',
    950: '#000000',
  },
}

SCSS

$custom: #337bce;
$custom-light: #80a0dd;
$custom-dark: #000000;

JSON

{
  "hex": "#337bce",
  "rgb": {
    "r": 51,
    "g": 123,
    "b": 206
  },
  "hsl": {
    "h": 212.129,
    "s": 61.265,
    "l": 50.392
  },
  "oklch": {
    "l": 0.57942,
    "c": 0.14638,
    "h": 254.2
  },
  "luminance": 0.19326
}

Semantic roles & 50–950 ramp

primary

#337BCE

secondary

#D1B18C

accent

#9A43E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #337BCE

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

Preview Lab → · Contrast checker → · Palette generator →