#337EB8#337EB8

#337EB8 is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.3% C 0.116 H 245.3°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#337EB8
RGB	rgb(51, 126, 184)
HSL	hsl(206, 57%, 46%)
HSV	hsv(206, 72%, 72%)
CMYK	cmyk(72.3%, 31.5%, 0%, 27.8%)
CIE-LAB	lab(50.79, -3.56, -37.17)
CIE-LCH	lch(50.79, 37.34, 264.53°)
OKLab	oklab(57.35% -0.0484 -0.1053)
OKLCH	oklch(57.35% 0.116 245.3)
XYZ	xyz(17.4745, 19.0843, 48.1008)
Luminance	0.1909 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337EB8 #B86D33

analogous

#33B8AF #337EB8 #333CB8

triadic

#337EB8 #B8337E #7EB833

tetradic

#337EB8 #AF33B8 #B86D33 #3CB833

square

#337EB8 #AF33B8 #B86D33 #3CB833

split-complementary

#337EB8 #B8333C #B8AF33

monochromatic

#183C58 #265D88 #337EB8 #589CD1 #88B8DE

Accessibility & contrast

On white

4.36

#337EB8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#337EB8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337EB8

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337EB8	#FFFFFF	#000000	##000000
##337EB8	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6480BB

Deuteranopia (green-blind)

#5173B7

Tritanopia (blue-blind)

#008C93

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #337eb8;
/* rgb */ color: rgb(51, 126, 184);
/* oklch */ color: oklch(57.3% 0.116 245.3);

Tailwind

colors: {
  custom: {
    50: '#7ba3cd',
    500: '#337eb8',
    950: '#000000',
  },
}

SCSS

$custom: #337eb8;
$custom-light: #7ba3cd;
$custom-dark: #000000;

JSON

{
  "hex": "#337eb8",
  "rgb": {
    "r": 51,
    "g": 126,
    "b": 184
  },
  "hsl": {
    "h": 206.165,
    "s": 56.596,
    "l": 46.078
  },
  "oklch": {
    "l": 0.57347,
    "c": 0.11588,
    "h": 245.3
  },
  "luminance": 0.19086
}

Semantic roles & 50–950 ramp

primary

#337EB8

secondary

#C89F7F

accent

#8A48E0

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #337EB8

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

Preview Lab → · Contrast checker → · Palette generator →