#337CB6#337CB6

#337CB6 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.8% C 0.115 H 245.9°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#337CB6
RGB	rgb(51, 124, 182)
HSL	hsl(207, 56%, 46%)
HSV	hsv(207, 72%, 71%)
CMYK	cmyk(72%, 31.9%, 0%, 28.6%)
CIE-LAB	lab(50.09, -3.09, -37.12)
CIE-LCH	lch(50.09, 37.24, 265.24°)
OKLab	oklab(56.77% -0.047 -0.1051)
OKLCH	oklch(56.77% 0.115 245.9)
XYZ	xyz(17.0132, 18.4946, 46.9201)
Luminance	0.1850 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337CB6 #B66D33

analogous

#33B6AE #337CB6 #333AB6

triadic

#337CB6 #B6337C #7CB633

tetradic

#337CB6 #AE33B6 #B66D33 #3AB633

square

#337CB6 #AE33B6 #B66D33 #3AB633

split-complementary

#337CB6 #B6333A #B6AE33

monochromatic

#183B56 #265B86 #337CB6 #569AD0 #86B7DD

Accessibility & contrast

On white

4.47

#337CB6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#337CB6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337CB6

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337CB6	#FFFFFF	#000000	##000000
##337CB6	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#627EB9

Deuteranopia (green-blind)

#4F72B5

Tritanopia (blue-blind)

#008A91

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #337cb6;
/* rgb */ color: rgb(51, 124, 182);
/* oklch */ color: oklch(56.8% 0.115 245.9);

Tailwind

colors: {
  custom: {
    50: '#7ba1cc',
    500: '#337cb6',
    950: '#000000',
  },
}

SCSS

$custom: #337cb6;
$custom-light: #7ba1cc;
$custom-dark: #000000;

JSON

{
  "hex": "#337cb6",
  "rgb": {
    "r": 51,
    "g": 124,
    "b": 182
  },
  "hsl": {
    "h": 206.565,
    "s": 56.223,
    "l": 45.686
  },
  "oklch": {
    "l": 0.56767,
    "c": 0.11519,
    "h": 245.9
  },
  "luminance": 0.18497
}

Semantic roles & 50–950 ramp

primary

#337CB6

secondary

#C79E7E

accent

#8B48E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #337CB6

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

Preview Lab → · Contrast checker → · Palette generator →