#337EDC#337EDC

#337EDC is a mid, vivid cyan. Relative luminance 0.208; OKLCH L 59.5% C 0.161 H 255.9°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#337EDC
RGB	rgb(51, 126, 220)
HSL	hsl(213, 71%, 53%)
HSV	hsv(213, 77%, 86%)
CMYK	cmyk(76.8%, 42.7%, 0%, 13.7%)
CIE-LAB	lab(52.72, 9.58, -54.59)
CIE-LCH	lch(52.72, 55.43, 279.95°)
OKLab	oklab(59.49% -0.0394 -0.1563)
OKLCH	oklch(59.49% 0.161 255.9)
XYZ	xyz(21.7396, 20.7903, 70.5634)
Luminance	0.2079 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337EDC #DC9133

analogous

#33D2DC #337EDC #3C33DC

triadic

#337EDC #DC337E #7EDC33

tetradic

#337EDC #DC33D2 #DC9133 #33DC3C

square

#337EDC #DC33D2 #DC9133 #33DC3C

split-complementary

#337EDC #DC3C33 #D2DC33

monochromatic

#16447F #1F61B3 #337EDC #679FE5 #9BC0EE

Accessibility & contrast

On white

4.07

#337EDC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#337EDC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337EDC

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337EDC	#FFFFFF	#000000	##000000
##337EDC	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F86E0

Deuteranopia (green-blind)

#2F77DA

Tritanopia (blue-blind)

#0094A2

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #337edc;
/* rgb */ color: rgb(51, 126, 220);
/* oklch */ color: oklch(59.5% 0.161 255.9);

Tailwind

colors: {
  custom: {
    50: '#82a2e7',
    500: '#337edc',
    950: '#000000',
  },
}

SCSS

$custom: #337edc;
$custom-light: #82a2e7;
$custom-dark: #000000;

JSON

{
  "hex": "#337edc",
  "rgb": {
    "r": 51,
    "g": 126,
    "b": 220
  },
  "hsl": {
    "h": 213.373,
    "s": 70.711,
    "l": 53.137
  },
  "oklch": {
    "l": 0.59489,
    "c": 0.1612,
    "h": 255.9
  },
  "luminance": 0.20793
}

Semantic roles & 50–950 ramp

primary

#337EDC

secondary

#DAB991

accent

#9E3AED

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0F16

muted

#7D7E84

Preview Lab

Preview with #337EDC

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

Preview Lab → · Contrast checker → · Palette generator →