#337EA8#337EA8

#337EA8 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.5% C 0.098 H 236.8°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#337EA8
RGB	rgb(51, 126, 168)
HSL	hsl(202, 53%, 43%)
HSV	hsv(202, 70%, 66%)
CMYK	cmyk(69.6%, 25%, 0%, 34.1%)
CIE-LAB	lab(50.04, -9.20, -29.10)
CIE-LCH	lch(50.04, 30.52, 252.46°)
OKLab	oklab(56.51% -0.0536 -0.0819)
OKLCH	oklch(56.51% 0.098 236.8)
XYZ	xyz(15.8912, 18.4509, 39.7621)
Luminance	0.1845 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337EA8 #A85D33

analogous

#33A897 #337EA8 #3344A8

triadic

#337EA8 #A8337E #7EA833

tetradic

#337EA8 #9733A8 #A85D33 #44A833

square

#337EA8 #9733A8 #A85D33 #44A833

split-complementary

#337EA8 #A83344 #A89733

monochromatic

#16384A #255B79 #337EA8 #4F9DC9 #7EB7D8

Accessibility & contrast

On white

4.48

#337EA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#337EA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337EA8

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337EA8	#FFFFFF	#000000	##000000
##337EA8	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7DAA

Deuteranopia (green-blind)

#5A72A7

Tritanopia (blue-blind)

#00898C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #337ea8;
/* rgb */ color: rgb(51, 126, 168);
/* oklch */ color: oklch(56.5% 0.098 236.8);

Tailwind

colors: {
  custom: {
    50: '#79a3c2',
    500: '#337ea8',
    950: '#000000',
  },
}

SCSS

$custom: #337ea8;
$custom-light: #79a3c2;
$custom-dark: #000000;

JSON

{
  "hex": "#337ea8",
  "rgb": {
    "r": 51,
    "g": 126,
    "b": 168
  },
  "hsl": {
    "h": 201.538,
    "s": 53.425,
    "l": 42.941
  },
  "oklch": {
    "l": 0.5651,
    "c": 0.09785,
    "h": 236.8
  },
  "luminance": 0.18453
}

Semantic roles & 50–950 ramp

primary

#337EA8

secondary

#C19176

accent

#7F4BDD

background

#F7FAFB

surface

#EEF3F7

border

#C9CDD0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #337EA8

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

Preview Lab → · Contrast checker → · Palette generator →