#337FBE#337FBE

#337FBE is a mid, vivid cyan. Relative luminance 0.196; OKLCH L 57.9% C 0.122 H 247.1°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#337FBE
RGB	rgb(51, 127, 190)
HSL	hsl(207, 58%, 47%)
HSV	hsv(207, 73%, 75%)
CMYK	cmyk(73.2%, 33.2%, 0%, 25.5%)
CIE-LAB	lab(51.38, -2.00, -39.68)
CIE-LCH	lch(51.38, 39.73, 267.11°)
OKLab	oklab(57.91% -0.0476 -0.1126)
OKLCH	oklch(57.91% 0.122 247.1)
XYZ	xyz(18.2453, 19.5982, 51.5265)
Luminance	0.1960 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337FBE #BE7233

analogous

#33BEB7 #337FBE #333ABE

triadic

#337FBE #BE337F #7FBE33

tetradic

#337FBE #B733BE #BE7233 #3ABE33

square

#337FBE #B733BE #BE7233 #3ABE33

split-complementary

#337FBE #BE333A #BEB733

monochromatic

#193E5E #265F8E #337FBE #5B9DD3 #8BBAE0

Accessibility & contrast

On white

4.27

#337FBE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#337FBE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337FBE

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337FBE	#FFFFFF	#000000	##000000
##337FBE	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6282C1

Deuteranopia (green-blind)

#4F75BD

Tritanopia (blue-blind)

#008E96

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #337fbe;
/* rgb */ color: rgb(51, 127, 190);
/* oklch */ color: oklch(57.9% 0.122 247.1);

Tailwind

colors: {
  custom: {
    50: '#7da3d2',
    500: '#337fbe',
    950: '#000000',
  },
}

SCSS

$custom: #337fbe;
$custom-light: #7da3d2;
$custom-dark: #000000;

JSON

{
  "hex": "#337fbe",
  "rgb": {
    "r": 51,
    "g": 127,
    "b": 190
  },
  "hsl": {
    "h": 207.194,
    "s": 57.676,
    "l": 47.255
  },
  "oklch": {
    "l": 0.57913,
    "c": 0.12223,
    "h": 247.1
  },
  "luminance": 0.196
}

Semantic roles & 50–950 ramp

primary

#337FBE

secondary

#CAA383

accent

#8D47E1

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #337FBE

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

Preview Lab → · Contrast checker → · Palette generator →