#337DC5#337DC5

#337DC5 is a mid, vivid cyan. Relative luminance 0.194; OKLCH L 57.9% C 0.133 H 250.7°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#337DC5
RGB	rgb(51, 125, 197)
HSL	hsl(210, 59%, 49%)
HSV	hsv(210, 74%, 77%)
CMYK	cmyk(74.1%, 36.5%, 0%, 22.7%)
CIE-LAB	lab(51.15, 1.74, -44.05)
CIE-LCH	lch(51.15, 44.08, 272.26°)
OKLab	oklab(57.85% -0.0438 -0.1254)
OKLCH	oklch(57.85% 0.133 250.7)
XYZ	xyz(18.7731, 19.4001, 55.5677)
Luminance	0.1940 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337DC5 #C57B33

analogous

#33C5C4 #337DC5 #3334C5

triadic

#337DC5 #C5337D #7DC533

tetradic

#337DC5 #C433C5 #C57B33 #34C533

square

#337DC5 #C433C5 #C57B33 #34C533

split-complementary

#337DC5 #C53334 #C5C433

monochromatic

#1A3F64 #265E94 #337DC5 #5F9BD6 #90BAE2

Accessibility & contrast

On white

4.30

#337DC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#337DC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337DC5

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337DC5	#FFFFFF	#000000	##000000
##337DC5	1.00	4.30	4.88	4.88
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C81C8

Deuteranopia (green-blind)

#4674C4

Tritanopia (blue-blind)

#008E97

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #337dc5;
/* rgb */ color: rgb(51, 125, 197);
/* oklch */ color: oklch(57.9% 0.133 250.7);

Tailwind

colors: {
  custom: {
    50: '#7ea2d7',
    500: '#337dc5',
    950: '#000000',
  },
}

SCSS

$custom: #337dc5;
$custom-light: #7ea2d7;
$custom-dark: #000000;

JSON

{
  "hex": "#337dc5",
  "rgb": {
    "r": 51,
    "g": 125,
    "b": 197
  },
  "hsl": {
    "h": 209.589,
    "s": 58.871,
    "l": 48.627
  },
  "oklch": {
    "l": 0.57852,
    "c": 0.13282,
    "h": 250.7
  },
  "luminance": 0.19402
}

Semantic roles & 50–950 ramp

primary

#337DC5

secondary

#CDA987

accent

#9346E2

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0F14

muted

#7C7E83

Preview Lab

Preview with #337DC5

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

Preview Lab → · Contrast checker → · Palette generator →