#337DBC#337DBC

#337DBC is a mid, vivid cyan. Relative luminance 0.190; OKLCH L 57.3% C 0.122 H 247.6°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#337DBC
RGB	rgb(51, 125, 188)
HSL	hsl(208, 57%, 47%)
HSV	hsv(208, 73%, 74%)
CMYK	cmyk(72.9%, 33.5%, 0%, 26.3%)
CIE-LAB	lab(50.69, -1.53, -39.63)
CIE-LCH	lch(50.69, 39.66, 267.79°)
OKLab	oklab(57.34% -0.0462 -0.1125)
OKLCH	oklch(57.34% 0.122 247.6)
XYZ	xyz(17.7725, 18.9999, 50.2979)
Luminance	0.1900 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337DBC #BC7233

analogous

#33BCB7 #337DBC #3339BC

triadic

#337DBC #BC337D #7DBC33

tetradic

#337DBC #B733BC #BC7233 #39BC33

square

#337DBC #B733BC #BC7233 #39BC33

split-complementary

#337DBC #BC3339 #BCB733

monochromatic

#193D5C #265D8C #337DBC #5A9BD2 #8AB8DF

Accessibility & contrast

On white

4.37

#337DBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#337DBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337DBC

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337DBC	#FFFFFF	#000000	##000000
##337DBC	1.00	4.37	4.80	4.80
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6080BF

Deuteranopia (green-blind)

#4D73BB

Tritanopia (blue-blind)

#008C94

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #337dbc;
/* rgb */ color: rgb(51, 125, 188);
/* oklch */ color: oklch(57.3% 0.122 247.6);

Tailwind

colors: {
  custom: {
    50: '#7ca2d0',
    500: '#337dbc',
    950: '#000000',
  },
}

SCSS

$custom: #337dbc;
$custom-light: #7ca2d0;
$custom-dark: #000000;

JSON

{
  "hex": "#337dbc",
  "rgb": {
    "r": 51,
    "g": 125,
    "b": 188
  },
  "hsl": {
    "h": 207.591,
    "s": 57.322,
    "l": 46.863
  },
  "oklch": {
    "l": 0.57335,
    "c": 0.1216,
    "h": 247.6
  },
  "luminance": 0.19002
}

Semantic roles & 50–950 ramp

primary

#337DBC

secondary

#C9A381

accent

#8E47E1

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0F14

muted

#7C7E82

Preview Lab

Preview with #337DBC

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

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