#337EDA#337EDA

#337EDA is a mid, vivid cyan. Relative luminance 0.207; OKLCH L 59.4% C 0.159 H 255.5°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#337EDA
RGB	rgb(51, 126, 218)
HSL	hsl(213, 69%, 53%)
HSV	hsv(213, 77%, 85%)
CMYK	cmyk(76.6%, 42.2%, 0%, 14.5%)
CIE-LAB	lab(52.60, 8.84, -53.65)
CIE-LCH	lch(52.60, 54.38, 279.35°)
OKLab	oklab(59.36% -0.0398 -0.1535)
OKLCH	oklch(59.36% 0.159 255.5)
XYZ	xyz(21.4763, 20.6850, 69.1768)
Luminance	0.2069 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337EDA #DA8F33

analogous

#33D2DA #337EDA #3B33DA

triadic

#337EDA #DA337E #7EDA33

tetradic

#337EDA #DA33D2 #DA8F33 #33DA3B

square

#337EDA #DA33D2 #DA8F33 #33DA3B

split-complementary

#337EDA #DA3B33 #D2DA33

monochromatic

#17447C #2061B0 #337EDA #679FE3 #9BC0ED

Accessibility & contrast

On white

4.09

#337EDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#337EDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337EDA

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337EDA	#FFFFFF	#000000	##000000
##337EDA	1.00	4.09	5.14	5.14
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5086DE

Deuteranopia (green-blind)

#3277D8

Tritanopia (blue-blind)

#0094A1

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #337eda;
/* rgb */ color: rgb(51, 126, 218);
/* oklch */ color: oklch(59.4% 0.159 255.5);

Tailwind

colors: {
  custom: {
    50: '#82a2e6',
    500: '#337eda',
    950: '#000000',
  },
}

SCSS

$custom: #337eda;
$custom-light: #82a2e6;
$custom-dark: #000000;

JSON

{
  "hex": "#337eda",
  "rgb": {
    "r": 51,
    "g": 126,
    "b": 218
  },
  "hsl": {
    "h": 213.054,
    "s": 69.295,
    "l": 52.745
  },
  "oklch": {
    "l": 0.59361,
    "c": 0.15862,
    "h": 255.5
  },
  "luminance": 0.20687
}

Semantic roles & 50–950 ramp

primary

#337EDA

secondary

#D9B890

accent

#9D3CEC

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0F16

muted

#7D7E84

Preview Lab

Preview with #337EDA

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

Preview Lab → · Contrast checker → · Palette generator →