#337AAC#337AAC

#337AAC is a mid, moderate cyan. Relative luminance 0.176; OKLCH L 55.8% C 0.105 H 242.7°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#337AAC
RGB	rgb(51, 122, 172)
HSL	hsl(205, 54%, 44%)
HSV	hsv(205, 70%, 67%)
CMYK	cmyk(70.3%, 29.1%, 0%, 32.5%)
CIE-LAB	lab(49.01, -5.46, -33.03)
CIE-LCH	lch(49.01, 33.48, 260.61°)
OKLab	oklab(55.75% -0.0481 -0.0933)
OKLCH	oklch(55.75% 0.105 242.7)
XYZ	xyz(15.7683, 17.5997, 41.5878)
Luminance	0.1760 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337AAC #AC6533

analogous

#33ACA1 #337AAC #333EAC

triadic

#337AAC #AC337A #7AAC33

tetradic

#337AAC #A133AC #AC6533 #3EAC33

square

#337AAC #A133AC #AC6533 #3EAC33

split-complementary

#337AAC #AC333E #ACA133

monochromatic

#17374E #25597D #337AAC #5199CB #80B4D9

Accessibility & contrast

On white

4.65

#337AAC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#337AAC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #337AAC

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337AAC	#FFFFFF	#000000	##FFFFFF
##337AAC	1.00	4.65	4.52	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#637BAE

Deuteranopia (green-blind)

#536FAB

Tritanopia (blue-blind)

#00868B

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #337aac;
/* rgb */ color: rgb(51, 122, 172);
/* oklch */ color: oklch(55.8% 0.105 242.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#337aac",
  "rgb": {
    "r": 51,
    "g": 122,
    "b": 172
  },
  "hsl": {
    "h": 204.793,
    "s": 54.26,
    "l": 43.725
  },
  "oklch": {
    "l": 0.55753,
    "c": 0.10497,
    "h": 242.7
  },
  "luminance": 0.17601
}

Semantic roles & 50–950 ramp

primary

#337AAC

secondary

#C29778

accent

#874ADE

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #337AAC

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

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