#337ABF#337ABF

#337ABF is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 56.8% C 0.128 H 250.6°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#337ABF
RGB	rgb(51, 122, 191)
HSL	hsl(210, 58%, 47%)
HSV	hsv(210, 73%, 75%)
CMYK	cmyk(73.3%, 36.1%, 0%, 25.1%)
CIE-LAB	lab(49.96, 1.37, -42.51)
CIE-LCH	lch(49.96, 42.53, 271.84°)
OKLab	oklab(56.81% -0.0426 -0.1209)
OKLCH	oklch(56.81% 0.128 250.6)
XYZ	xyz(17.7252, 18.3825, 51.8941)
Luminance	0.1838 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337ABF #BF7833

analogous

#33BFBE #337ABF #3334BF

triadic

#337ABF #BF337A #7ABF33

tetradic

#337ABF #BE33BF #BF7833 #34BF33

square

#337ABF #BE33BF #BF7833 #34BF33

split-complementary

#337ABF #BF3334 #BFBE33

monochromatic

#193C5E #265B8F #337ABF #5C98D3 #8CB7E0

Accessibility & contrast

On white

4.49

#337ABF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#337ABF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337ABF

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337ABF	#FFFFFF	#000000	##000000
##337ABF	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7EC2

Deuteranopia (green-blind)

#4671BE

Tritanopia (blue-blind)

#008A93

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #337abf;
/* rgb */ color: rgb(51, 122, 191);
/* oklch */ color: oklch(56.8% 0.128 250.6);

Tailwind

colors: {
  custom: {
    50: '#7da0d2',
    500: '#337abf',
    950: '#000000',
  },
}

SCSS

$custom: #337abf;
$custom-light: #7da0d2;
$custom-dark: #000000;

JSON

{
  "hex": "#337abf",
  "rgb": {
    "r": 51,
    "g": 122,
    "b": 191
  },
  "hsl": {
    "h": 209.571,
    "s": 57.851,
    "l": 47.451
  },
  "oklch": {
    "l": 0.56812,
    "c": 0.12819,
    "h": 250.6
  },
  "luminance": 0.18384
}

Semantic roles & 50–950 ramp

primary

#337ABF

secondary

#CBA683

accent

#9347E1

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #337ABF

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

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