#337AC0#337AC0

#337AC0 is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 56.9% C 0.129 H 250.9°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#337AC0
RGB	rgb(51, 122, 192)
HSL	hsl(210, 58%, 48%)
HSV	hsv(210, 73%, 75%)
CMYK	cmyk(73.4%, 36.5%, 0%, 24.7%)
CIE-LAB	lab(50.01, 1.73, -43.00)
CIE-LCH	lch(50.01, 43.03, 272.31°)
OKLab	oklab(56.87% -0.0423 -0.1223)
OKLCH	oklch(56.87% 0.129 250.9)
XYZ	xyz(17.8356, 18.4266, 52.4757)
Luminance	0.1843 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337AC0 #C07933

analogous

#33C0BF #337AC0 #3334C0

triadic

#337AC0 #C0337A #7AC033

tetradic

#337AC0 #BF33C0 #C07933 #34C033

square

#337AC0 #BF33C0 #C07933 #34C033

split-complementary

#337AC0 #C03334 #C0BF33

monochromatic

#193D5F #265B90 #337AC0 #5C99D4 #8DB7E1

Accessibility & contrast

On white

4.48

#337AC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#337AC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337AC0

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337AC0	#FFFFFF	#000000	##000000
##337AC0	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)

#5A7EC3

Deuteranopia (green-blind)

#4571BF

Tritanopia (blue-blind)

#008B94

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #337ac0;
/* rgb */ color: rgb(51, 122, 192);
/* oklch */ color: oklch(56.9% 0.129 250.9);

Tailwind

colors: {
  custom: {
    50: '#7da0d3',
    500: '#337ac0',
    950: '#000000',
  },
}

SCSS

$custom: #337ac0;
$custom-light: #7da0d3;
$custom-dark: #000000;

JSON

{
  "hex": "#337ac0",
  "rgb": {
    "r": 51,
    "g": 122,
    "b": 192
  },
  "hsl": {
    "h": 209.787,
    "s": 58.025,
    "l": 47.647
  },
  "oklch": {
    "l": 0.5687,
    "c": 0.12946,
    "h": 250.9
  },
  "luminance": 0.18429
}

Semantic roles & 50–950 ramp

primary

#337AC0

secondary

#CBA784

accent

#9347E1

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #337AC0

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

Preview Lab → · Contrast checker → · Palette generator →