#337FB6#337FB6

#337FB6 is a mid, moderate cyan. Relative luminance 0.193; OKLCH L 57.5% C 0.113 H 243.7°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#337FB6
RGB	rgb(51, 127, 182)
HSL	hsl(205, 56%, 46%)
HSV	hsv(205, 72%, 71%)
CMYK	cmyk(72%, 30.2%, 0%, 28.6%)
CIE-LAB	lab(50.99, -4.86, -35.70)
CIE-LCH	lch(50.99, 36.03, 262.25°)
OKLab	oklab(57.48% -0.05 -0.101)
OKLCH	oklch(57.48% 0.113 243.7)
XYZ	xyz(17.3949, 19.2580, 47.0473)
Luminance	0.1926 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337FB6 #B66A33

analogous

#33B6AB #337FB6 #333DB6

triadic

#337FB6 #B6337F #7FB633

tetradic

#337FB6 #AB33B6 #B66A33 #3DB633

square

#337FB6 #AB33B6 #B66A33 #3DB633

split-complementary

#337FB6 #B6333D #B6AB33

monochromatic

#183C56 #265E86 #337FB6 #569DD0 #86B9DD

Accessibility & contrast

On white

4.33

#337FB6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#337FB6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337FB6

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337FB6	#FFFFFF	#000000	##000000
##337FB6	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6680B8

Deuteranopia (green-blind)

#5474B5

Tritanopia (blue-blind)

#008C92

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #337fb6;
/* rgb */ color: rgb(51, 127, 182);
/* oklch */ color: oklch(57.5% 0.113 243.7);

Tailwind

colors: {
  custom: {
    50: '#7ba3cc',
    500: '#337fb6',
    950: '#000000',
  },
}

SCSS

$custom: #337fb6;
$custom-light: #7ba3cc;
$custom-dark: #000000;

JSON

{
  "hex": "#337fb6",
  "rgb": {
    "r": 51,
    "g": 127,
    "b": 182
  },
  "hsl": {
    "h": 205.191,
    "s": 56.223,
    "l": 45.686
  },
  "oklch": {
    "l": 0.57475,
    "c": 0.11269,
    "h": 243.7
  },
  "luminance": 0.1926
}

Semantic roles & 50–950 ramp

primary

#337FB6

secondary

#C79D7E

accent

#8848E0

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #337FB6

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

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