#337EBC#337EBC

#337EBC is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 57.6% C 0.121 H 247.0°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#337EBC
RGB	rgb(51, 126, 188)
HSL	hsl(207, 57%, 47%)
HSV	hsv(207, 73%, 74%)
CMYK	cmyk(72.9%, 33%, 0%, 26.3%)
CIE-LAB	lab(50.98, -2.12, -39.16)
CIE-LCH	lch(50.98, 39.22, 266.90°)
OKLab	oklab(57.57% -0.0472 -0.1111)
OKLCH	oklch(57.57% 0.121 247)
XYZ	xyz(17.8997, 19.2543, 50.3403)
Luminance	0.1926 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337EBC #BC7133

analogous

#33BCB6 #337EBC #333ABC

triadic

#337EBC #BC337E #7EBC33

tetradic

#337EBC #B633BC #BC7133 #3ABC33

square

#337EBC #B633BC #BC7133 #3ABC33

split-complementary

#337EBC #BC333A #BCB633

monochromatic

#193D5C #265E8C #337EBC #5A9CD2 #8AB9DF

Accessibility & contrast

On white

4.33

#337EBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#337EBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337EBC

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337EBC	#FFFFFF	#000000	##000000
##337EBC	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6281BF

Deuteranopia (green-blind)

#4E74BB

Tritanopia (blue-blind)

#008D94

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #337ebc;
/* rgb */ color: rgb(51, 126, 188);
/* oklch */ color: oklch(57.6% 0.121 247.0);

Tailwind

colors: {
  custom: {
    50: '#7ca3d0',
    500: '#337ebc',
    950: '#000000',
  },
}

SCSS

$custom: #337ebc;
$custom-light: #7ca3d0;
$custom-dark: #000000;

JSON

{
  "hex": "#337ebc",
  "rgb": {
    "r": 51,
    "g": 126,
    "b": 188
  },
  "hsl": {
    "h": 207.153,
    "s": 57.322,
    "l": 46.863
  },
  "oklch": {
    "l": 0.57568,
    "c": 0.12069,
    "h": 247
  },
  "luminance": 0.19256
}

Semantic roles & 50–950 ramp

primary

#337EBC

secondary

#C9A281

accent

#8D47E1

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0F14

muted

#7C7E82

Preview Lab

Preview with #337EBC

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

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