#337AC1#337AC1

#337AC1 is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 56.9% C 0.131 H 251.2°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#337AC1
RGB	rgb(51, 122, 193)
HSL	hsl(210, 58%, 48%)
HSV	hsv(210, 74%, 76%)
CMYK	cmyk(73.6%, 36.8%, 0%, 24.3%)
CIE-LAB	lab(50.06, 2.10, -43.49)
CIE-LCH	lch(50.06, 43.54, 272.76°)
OKLab	oklab(56.93% -0.042 -0.1238)
OKLCH	oklch(56.93% 0.131 251.2)
XYZ	xyz(17.9468, 18.4711, 53.0612)
Luminance	0.1847 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337AC1 #C17A33

analogous

#33C1C1 #337AC1 #3333C1

triadic

#337AC1 #C1337A #7AC133

tetradic

#337AC1 #C133C1 #C17A33 #33C133

square

#337AC1 #C133C1 #C17A33 #33C133

split-complementary

#337AC1 #C13333 #C1C133

monochromatic

#193D60 #265B91 #337AC1 #5D99D4 #8DB7E1

Accessibility & contrast

On white

4.47

#337AC1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#337AC1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337AC1

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337AC1	#FFFFFF	#000000	##000000
##337AC1	1.00	4.47	4.69	4.69
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#597EC4

Deuteranopia (green-blind)

#4471C0

Tritanopia (blue-blind)

#008B94

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #337ac1;
/* rgb */ color: rgb(51, 122, 193);
/* oklch */ color: oklch(56.9% 0.131 251.2);

Tailwind

colors: {
  custom: {
    50: '#7da0d4',
    500: '#337ac1',
    950: '#000000',
  },
}

SCSS

$custom: #337ac1;
$custom-light: #7da0d4;
$custom-dark: #000000;

JSON

{
  "hex": "#337ac1",
  "rgb": {
    "r": 51,
    "g": 122,
    "b": 193
  },
  "hsl": {
    "h": 210,
    "s": 58.197,
    "l": 47.843
  },
  "oklch": {
    "l": 0.56929,
    "c": 0.13073,
    "h": 251.2
  },
  "luminance": 0.18473
}

Semantic roles & 50–950 ramp

primary

#337AC1

secondary

#CBA884

accent

#9446E1

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #337AC1

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

Preview Lab → · Contrast checker → · Palette generator →