#337EB9#337EB9

#337EB9 is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.4% C 0.117 H 245.7°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#337EB9
RGB	rgb(51, 126, 185)
HSL	hsl(206, 57%, 46%)
HSV	hsv(206, 72%, 73%)
CMYK	cmyk(72.4%, 31.9%, 0%, 27.5%)
CIE-LAB	lab(50.83, -3.20, -37.67)
CIE-LCH	lch(50.83, 37.81, 265.14°)
OKLab	oklab(57.4% -0.0481 -0.1067)
OKLCH	oklch(57.4% 0.117 245.7)
XYZ	xyz(17.5797, 19.1263, 48.6548)
Luminance	0.1913 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337EB9 #B96E33

analogous

#33B9B1 #337EB9 #333BB9

triadic

#337EB9 #B9337E #7EB933

tetradic

#337EB9 #B133B9 #B96E33 #3BB933

square

#337EB9 #B133B9 #B96E33 #3BB933

split-complementary

#337EB9 #B9333B #B9B133

monochromatic

#193D59 #265D89 #337EB9 #589CD1 #88B8DE

Accessibility & contrast

On white

4.35

#337EB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#337EB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337EB9

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337EB9	#FFFFFF	#000000	##000000
##337EB9	1.00	4.35	4.83	4.83
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6380BC

Deuteranopia (green-blind)

#5073B8

Tritanopia (blue-blind)

#008C93

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #337eb9;
/* rgb */ color: rgb(51, 126, 185);
/* oklch */ color: oklch(57.4% 0.117 245.7);

Tailwind

colors: {
  custom: {
    50: '#7ca3ce',
    500: '#337eb9',
    950: '#000000',
  },
}

SCSS

$custom: #337eb9;
$custom-light: #7ca3ce;
$custom-dark: #000000;

JSON

{
  "hex": "#337eb9",
  "rgb": {
    "r": 51,
    "g": 126,
    "b": 185
  },
  "hsl": {
    "h": 206.418,
    "s": 56.78,
    "l": 46.275
  },
  "oklch": {
    "l": 0.57402,
    "c": 0.11707,
    "h": 245.7
  },
  "luminance": 0.19128
}

Semantic roles & 50–950 ramp

primary

#337EB9

secondary

#C8A080

accent

#8B48E0

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #337EB9

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

Preview Lab → · Contrast checker → · Palette generator →