#337AAD#337AAD

#337AAD is a mid, moderate cyan. Relative luminance 0.176; OKLCH L 55.8% C 0.106 H 243.2°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#337AAD
RGB	rgb(51, 122, 173)
HSL	hsl(205, 54%, 44%)
HSV	hsv(205, 71%, 68%)
CMYK	cmyk(70.5%, 29.5%, 0%, 32.2%)
CIE-LAB	lab(49.05, -5.11, -33.54)
CIE-LCH	lch(49.05, 33.92, 261.34°)
OKLab	oklab(55.81% -0.0478 -0.0947)
OKLCH	oklch(55.81% 0.106 243.2)
XYZ	xyz(15.8647, 17.6383, 42.0955)
Luminance	0.1764 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337AAD #AD6633

analogous

#33ADA3 #337AAD #333DAD

triadic

#337AAD #AD337A #7AAD33

tetradic

#337AAD #A333AD #AD6633 #3DAD33

square

#337AAD #A333AD #AD6633 #3DAD33

split-complementary

#337AAD #AD333D #ADA333

monochromatic

#17374E #25597E #337AAD #5199CC #81B5DA

Accessibility & contrast

On white

4.64

#337AAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#337AAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #337AAD

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337AAD	#FFFFFF	#000000	##FFFFFF
##337AAD	1.00	4.64	4.53	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#637BAF

Deuteranopia (green-blind)

#526FAC

Tritanopia (blue-blind)

#00868C

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #337aad;
/* rgb */ color: rgb(51, 122, 173);
/* oklch */ color: oklch(55.8% 0.106 243.2);

Tailwind

colors: {
  custom: {
    50: '#79a0c5',
    500: '#337aad',
    950: '#000000',
  },
}

SCSS

$custom: #337aad;
$custom-light: #79a0c5;
$custom-dark: #000000;

JSON

{
  "hex": "#337aad",
  "rgb": {
    "r": 51,
    "g": 122,
    "b": 173
  },
  "hsl": {
    "h": 205.082,
    "s": 54.464,
    "l": 43.922
  },
  "oklch": {
    "l": 0.55806,
    "c": 0.10613,
    "h": 243.2
  },
  "luminance": 0.1764
}

Semantic roles & 50–950 ramp

primary

#337AAD

secondary

#C39879

accent

#884ADE

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #337AAD

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

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