#337FCA#337FCA

#337FCA is a mid, vivid cyan. Relative luminance 0.201; OKLCH L 58.6% C 0.137 H 251.1°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#337FCA
RGB	rgb(51, 127, 202)
HSL	hsl(210, 60%, 50%)
HSV	hsv(210, 75%, 79%)
CMYK	cmyk(74.8%, 37.1%, 0%, 20.8%)
CIE-LAB	lab(52.00, 2.35, -45.55)
CIE-LCH	lch(52.00, 45.61, 272.95°)
OKLab	oklab(58.6% -0.0443 -0.1298)
OKLCH	oklch(58.6% 0.137 251.1)
XYZ	xyz(19.6113, 20.1446, 58.7204)
Luminance	0.2015 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337FCA #CA7E33

analogous

#33CACA #337FCA #3334CA

triadic

#337FCA #CA337F #7FCA33

tetradic

#337FCA #CA33CA #CA7E33 #34CA33

square

#337FCA #CA33CA #CA7E33 #34CA33

split-complementary

#337FCA #CA3334 #CACA33

monochromatic

#1A4268 #276099 #337FCA #639DD8 #94BCE4

Accessibility & contrast

On white

4.18

#337FCA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#337FCA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337FCA

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337FCA	#FFFFFF	#000000	##000000
##337FCA	1.00	4.18	5.03	5.03
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C84CD

Deuteranopia (green-blind)

#4576C9

Tritanopia (blue-blind)

#00919B

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #337fca;
/* rgb */ color: rgb(51, 127, 202);
/* oklch */ color: oklch(58.6% 0.137 251.1);

Tailwind

colors: {
  custom: {
    50: '#7fa3da',
    500: '#337fca',
    950: '#000000',
  },
}

SCSS

$custom: #337fca;
$custom-light: #7fa3da;
$custom-dark: #000000;

JSON

{
  "hex": "#337fca",
  "rgb": {
    "r": 51,
    "g": 127,
    "b": 202
  },
  "hsl": {
    "h": 209.801,
    "s": 59.684,
    "l": 49.608
  },
  "oklch": {
    "l": 0.58602,
    "c": 0.13712,
    "h": 251.1
  },
  "luminance": 0.20147
}

Semantic roles & 50–950 ramp

primary

#337FCA

secondary

#CFAC8A

accent

#9345E3

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0B0F15

muted

#7C7F83

Preview Lab

Preview with #337FCA

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

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