#337BAF#337BAF

#337BAF is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.2% C 0.108 H 243.4°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#337BAF
RGB	rgb(51, 123, 175)
HSL	hsl(205, 55%, 44%)
HSV	hsv(205, 71%, 69%)
CMYK	cmyk(70.9%, 29.7%, 0%, 31.4%)
CIE-LAB	lab(49.45, -4.99, -34.07)
CIE-LCH	lch(49.45, 34.44, 261.67°)
OKLab	oklab(56.15% -0.0482 -0.0963)
OKLCH	oklch(56.15% 0.108 243.4)
XYZ	xyz(16.1831, 17.9631, 43.1635)
Luminance	0.1797 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337BAF #AF6733

analogous

#33AFA5 #337BAF #333DAF

triadic

#337BAF #AF337B #7BAF33

tetradic

#337BAF #A533AF #AF6733 #3DAF33

square

#337BAF #A533AF #AF6733 #3DAF33

split-complementary

#337BAF #AF333D #AFA533

monochromatic

#173850 #255A80 #337BAF #5299CD #82B5DB

Accessibility & contrast

On white

4.57

#337BAF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#337BAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337BAF

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337BAF	#FFFFFF	#000000	##000000
##337BAF	1.00	4.57	4.59	4.59
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#637CB1

Deuteranopia (green-blind)

#5270AE

Tritanopia (blue-blind)

#00888D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #337baf;
/* rgb */ color: rgb(51, 123, 175);
/* oklch */ color: oklch(56.2% 0.108 243.4);

Tailwind

colors: {
  custom: {
    50: '#7aa1c7',
    500: '#337baf',
    950: '#000000',
  },
}

SCSS

$custom: #337baf;
$custom-light: #7aa1c7;
$custom-dark: #000000;

JSON

{
  "hex": "#337baf",
  "rgb": {
    "r": 51,
    "g": 123,
    "b": 175
  },
  "hsl": {
    "h": 205.161,
    "s": 54.867,
    "l": 44.314
  },
  "oklch": {
    "l": 0.56151,
    "c": 0.10768,
    "h": 243.4
  },
  "luminance": 0.17965
}

Semantic roles & 50–950 ramp

primary

#337BAF

secondary

#C4997A

accent

#884ADE

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #337BAF

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

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