#337DC6#337DC6

#337DC6 is a mid, vivid cyan. Relative luminance 0.194; OKLCH L 57.9% C 0.134 H 251.1°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#337DC6
RGB	rgb(51, 125, 198)
HSL	hsl(210, 59%, 49%)
HSV	hsv(210, 74%, 78%)
CMYK	cmyk(74.2%, 36.9%, 0%, 22.4%)
CIE-LAB	lab(51.21, 2.10, -44.53)
CIE-LCH	lch(51.21, 44.58, 272.70°)
OKLab	oklab(57.91% -0.0435 -0.1268)
OKLCH	oklch(57.91% 0.134 251.1)
XYZ	xyz(18.8881, 19.4461, 56.1731)
Luminance	0.1945 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337DC6 #C67C33

analogous

#33C6C6 #337DC6 #3334C6

triadic

#337DC6 #C6337D #7DC633

tetradic

#337DC6 #C633C6 #C67C33 #34C633

square

#337DC6 #C633C6 #C67C33 #34C633

split-complementary

#337DC6 #C63334 #C6C633

monochromatic

#1A4065 #265E95 #337DC6 #609CD6 #91BAE3

Accessibility & contrast

On white

4.29

#337DC6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#337DC6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337DC6

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337DC6	#FFFFFF	#000000	##000000
##337DC6	1.00	4.29	4.89	4.89
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B81C9

Deuteranopia (green-blind)

#4574C5

Tritanopia (blue-blind)

#008E98

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #337dc6;
/* rgb */ color: rgb(51, 125, 198);
/* oklch */ color: oklch(57.9% 0.134 251.1);

Tailwind

colors: {
  custom: {
    50: '#7ea2d7',
    500: '#337dc6',
    950: '#000000',
  },
}

SCSS

$custom: #337dc6;
$custom-light: #7ea2d7;
$custom-dark: #000000;

JSON

{
  "hex": "#337dc6",
  "rgb": {
    "r": 51,
    "g": 125,
    "b": 198
  },
  "hsl": {
    "h": 209.796,
    "s": 59.036,
    "l": 48.824
  },
  "oklch": {
    "l": 0.5791,
    "c": 0.13407,
    "h": 251.1
  },
  "luminance": 0.19448
}

Semantic roles & 50–950 ramp

primary

#337DC6

secondary

#CDAA87

accent

#9346E2

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0F14

muted

#7C7E83

Preview Lab

Preview with #337DC6

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

Preview Lab → · Contrast checker → · Palette generator →