#337CAB#337CAB

#337CAB is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.2% C 0.102 H 240.4°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#337CAB
RGB	rgb(51, 124, 171)
HSL	hsl(204, 54%, 44%)
HSV	hsv(204, 70%, 67%)
CMYK	cmyk(70.2%, 27.5%, 0%, 32.9%)
CIE-LAB	lab(49.57, -6.99, -31.57)
CIE-LCH	lch(49.57, 32.34, 257.51°)
OKLab	oklab(56.18% -0.0505 -0.089)
OKLCH	oklch(56.18% 0.102 240.4)
XYZ	xyz(15.9207, 18.0576, 41.1666)
Luminance	0.1806 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337CAB #AB6233

analogous

#33AB9E #337CAB #3340AB

triadic

#337CAB #AB337C #7CAB33

tetradic

#337CAB #9E33AB #AB6233 #40AB33

square

#337CAB #9E33AB #AB6233 #40AB33

split-complementary

#337CAB #AB3340 #AB9E33

monochromatic

#17384D #255A7C #337CAB #509BCB #7FB6D9

Accessibility & contrast

On white

4.55

#337CAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#337CAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337CAB

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337CAB	#FFFFFF	#000000	##000000
##337CAB	1.00	4.55	4.61	4.61
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#667CAD

Deuteranopia (green-blind)

#5671AA

Tritanopia (blue-blind)

#00888C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #337cab;
/* rgb */ color: rgb(51, 124, 171);
/* oklch */ color: oklch(56.2% 0.102 240.4);

Tailwind

colors: {
  custom: {
    50: '#79a1c4',
    500: '#337cab',
    950: '#000000',
  },
}

SCSS

$custom: #337cab;
$custom-light: #79a1c4;
$custom-dark: #000000;

JSON

{
  "hex": "#337cab",
  "rgb": {
    "r": 51,
    "g": 124,
    "b": 171
  },
  "hsl": {
    "h": 203.5,
    "s": 54.054,
    "l": 43.529
  },
  "oklch": {
    "l": 0.5618,
    "c": 0.10237,
    "h": 240.4
  },
  "luminance": 0.18059
}

Semantic roles & 50–950 ramp

primary

#337CAB

secondary

#C29578

accent

#844ADD

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #337CAB

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

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