#337DA6#337DA6

#337DA6 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.2% C 0.096 H 236.4°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#337DA6
RGB	rgb(51, 125, 166)
HSL	hsl(201, 53%, 43%)
HSV	hsv(201, 69%, 65%)
CMYK	cmyk(69.3%, 24.7%, 0%, 34.9%)
CIE-LAB	lab(49.64, -9.31, -28.55)
CIE-LCH	lch(49.64, 30.03, 251.93°)
OKLab	oklab(56.17% -0.0533 -0.0803)
OKLCH	oklch(56.17% 0.096 236.4)
XYZ	xyz(15.5791, 18.1225, 38.7459)
Luminance	0.1812 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337DA6 #A65C33

analogous

#33A695 #337DA6 #3344A6

triadic

#337DA6 #A6337D #7DA633

tetradic

#337DA6 #9533A6 #A65C33 #44A633

square

#337DA6 #9533A6 #A65C33 #44A633

split-complementary

#337DA6 #A63344 #A69533

monochromatic

#163648 #255A77 #337DA6 #4E9DC9 #7CB7D7

Accessibility & contrast

On white

4.54

#337DA6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#337DA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337DA6

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337DA6	#FFFFFF	#000000	##000000
##337DA6	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7CA8

Deuteranopia (green-blind)

#5A71A5

Tritanopia (blue-blind)

#00888B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #337da6;
/* rgb */ color: rgb(51, 125, 166);
/* oklch */ color: oklch(56.2% 0.096 236.4);

Tailwind

colors: {
  custom: {
    50: '#78a2c0',
    500: '#337da6',
    950: '#000000',
  },
}

SCSS

$custom: #337da6;
$custom-light: #78a2c0;
$custom-dark: #000000;

JSON

{
  "hex": "#337da6",
  "rgb": {
    "r": 51,
    "g": 125,
    "b": 166
  },
  "hsl": {
    "h": 201.391,
    "s": 52.995,
    "l": 42.549
  },
  "oklch": {
    "l": 0.56168,
    "c": 0.09634,
    "h": 236.4
  },
  "luminance": 0.18124
}

Semantic roles & 50–950 ramp

primary

#337DA6

secondary

#C09075

accent

#7F4BDC

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #337DA6

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

Preview Lab → · Contrast checker → · Palette generator →