#337BAD#337BAD

#337BAD is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.0% C 0.105 H 242.4°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#337BAD
RGB	rgb(51, 123, 173)
HSL	hsl(205, 54%, 44%)
HSV	hsv(205, 71%, 68%)
CMYK	cmyk(70.5%, 28.9%, 0%, 32.2%)
CIE-LAB	lab(49.36, -5.70, -33.06)
CIE-LCH	lch(49.36, 33.55, 260.22°)
OKLab	oklab(56.05% -0.0488 -0.0934)
OKLCH	oklch(56.05% 0.105 242.4)
XYZ	xyz(15.9881, 17.8851, 42.1366)
Luminance	0.1789 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337BAD #AD6533

analogous

#33ADA2 #337BAD #333EAD

triadic

#337BAD #AD337B #7BAD33

tetradic

#337BAD #A233AD #AD6533 #3EAD33

square

#337BAD #A233AD #AD6533 #3EAD33

split-complementary

#337BAD #AD333E #ADA233

monochromatic

#17384E #25597E #337BAD #519ACC #81B5DA

Accessibility & contrast

On white

4.59

#337BAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#337BAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #337BAD

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337BAD	#FFFFFF	#000000	##FFFFFF
##337BAD	1.00	4.59	4.58	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.58	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#647CAF

Deuteranopia (green-blind)

#5370AC

Tritanopia (blue-blind)

#00878C

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #337bad;
/* rgb */ color: rgb(51, 123, 173);
/* oklch */ color: oklch(56.0% 0.105 242.4);

Tailwind

colors: {
  custom: {
    50: '#79a1c5',
    500: '#337bad',
    950: '#000000',
  },
}

SCSS

$custom: #337bad;
$custom-light: #79a1c5;
$custom-dark: #000000;

JSON

{
  "hex": "#337bad",
  "rgb": {
    "r": 51,
    "g": 123,
    "b": 173
  },
  "hsl": {
    "h": 204.59,
    "s": 54.464,
    "l": 43.922
  },
  "oklch": {
    "l": 0.56045,
    "c": 0.10537,
    "h": 242.4
  },
  "luminance": 0.17887
}

Semantic roles & 50–950 ramp

primary

#337BAD

secondary

#C39779

accent

#874ADE

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #337BAD

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

Preview Lab → · Contrast checker → · Palette generator →