#337DA0#337DA0

#337DA0 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 55.9% C 0.090 H 232.2°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#337DA0
RGB	rgb(51, 125, 160)
HSL	hsl(199, 52%, 41%)
HSV	hsv(199, 68%, 63%)
CMYK	cmyk(68.1%, 21.9%, 0%, 37.3%)
CIE-LAB	lab(49.38, -11.38, -25.46)
CIE-LCH	lch(49.38, 27.88, 245.92°)
OKLab	oklab(55.87% -0.0554 -0.0714)
OKLCH	oklch(55.87% 0.09 232.2)
XYZ	xyz(15.0415, 17.9075, 35.9147)
Luminance	0.1791 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337DA0 #A05633

analogous

#33A08D #337DA0 #3347A0

triadic

#337DA0 #A0337D #7DA033

tetradic

#337DA0 #8D33A0 #A05633 #47A033

square

#337DA0 #8D33A0 #A05633 #47A033

split-complementary

#337DA0 #A03347 #A08D33

monochromatic

#153443 #245972 #337DA0 #4B9EC6 #79B7D4

Accessibility & contrast

On white

4.58

#337DA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#337DA0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337DA0

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337DA0	#FFFFFF	#000000	##000000
##337DA0	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7CA2

Deuteranopia (green-blind)

#5D719F

Tritanopia (blue-blind)

#008689

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #337da0;
/* rgb */ color: rgb(51, 125, 160);
/* oklch */ color: oklch(55.9% 0.090 232.2);

Tailwind

colors: {
  custom: {
    50: '#78a2bc',
    500: '#337da0',
    950: '#000000',
  },
}

SCSS

$custom: #337da0;
$custom-light: #78a2bc;
$custom-dark: #000000;

JSON

{
  "hex": "#337da0",
  "rgb": {
    "r": 51,
    "g": 125,
    "b": 160
  },
  "hsl": {
    "h": 199.266,
    "s": 51.659,
    "l": 41.373
  },
  "oklch": {
    "l": 0.55874,
    "c": 0.09037,
    "h": 232.2
  },
  "luminance": 0.17909
}

Semantic roles & 50–950 ramp

primary

#337DA0

secondary

#BD8A72

accent

#7A4DDB

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #337DA0

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

Preview Lab → · Contrast checker → · Palette generator →