#337DBE#337DBE

#337DBE is a mid, vivid cyan. Relative luminance 0.191; OKLCH L 57.4% C 0.124 H 248.4°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#337DBE
RGB	rgb(51, 125, 190)
HSL	hsl(208, 58%, 47%)
HSV	hsv(208, 73%, 75%)
CMYK	cmyk(73.2%, 34.2%, 0%, 25.5%)
CIE-LAB	lab(50.79, -0.80, -40.62)
CIE-LCH	lch(50.79, 40.62, 268.86°)
OKLab	oklab(57.45% -0.0457 -0.1153)
OKLCH	oklch(57.45% 0.124 248.4)
XYZ	xyz(17.9896, 19.0867, 51.4412)
Luminance	0.1909 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337DBE #BE7433

analogous

#33BEBA #337DBE #3337BE

triadic

#337DBE #BE337D #7DBE33

tetradic

#337DBE #BA33BE #BE7433 #37BE33

square

#337DBE #BA33BE #BE7433 #37BE33

split-complementary

#337DBE #BE3337 #BEBA33

monochromatic

#193E5E #265D8E #337DBE #5B9BD3 #8BB8E0

Accessibility & contrast

On white

4.36

#337DBE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#337DBE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337DBE

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337DBE	#FFFFFF	#000000	##000000
##337DBE	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F80C1

Deuteranopia (green-blind)

#4B73BD

Tritanopia (blue-blind)

#008C95

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #337dbe;
/* rgb */ color: rgb(51, 125, 190);
/* oklch */ color: oklch(57.4% 0.124 248.4);

Tailwind

colors: {
  custom: {
    50: '#7ca2d2',
    500: '#337dbe',
    950: '#000000',
  },
}

SCSS

$custom: #337dbe;
$custom-light: #7ca2d2;
$custom-dark: #000000;

JSON

{
  "hex": "#337dbe",
  "rgb": {
    "r": 51,
    "g": 125,
    "b": 190
  },
  "hsl": {
    "h": 208.058,
    "s": 57.676,
    "l": 47.255
  },
  "oklch": {
    "l": 0.57447,
    "c": 0.12407,
    "h": 248.4
  },
  "luminance": 0.19089
}

Semantic roles & 50–950 ramp

primary

#337DBE

secondary

#CAA483

accent

#8F47E1

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0F14

muted

#7C7E82

Preview Lab

Preview with #337DBE

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

Preview Lab → · Contrast checker → · Palette generator →