#347B9F#347B9F

#347B9F is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.4% C 0.090 H 233.8°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#347B9F
RGB	rgb(52, 123, 159)
HSL	hsl(200, 51%, 41%)
HSV	hsv(200, 67%, 62%)
CMYK	cmyk(67.3%, 22.6%, 0%, 37.6%)
CIE-LAB	lab(48.76, -10.41, -25.84)
CIE-LCH	lch(48.76, 27.86, 248.07°)
OKLab	oklab(55.37% -0.053 -0.0725)
OKLCH	oklch(55.37% 0.09 233.8)
XYZ	xyz(14.7547, 17.3976, 35.3746)
Luminance	0.1740 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#347B9F #9F5834

analogous

#349F8E #347B9F #34469F

triadic

#347B9F #9F347B #7B9F34

tetradic

#347B9F #8E349F #9F5834 #469F34

square

#347B9F #8E349F #9F5834 #469F34

split-complementary

#347B9F #9F3446 #9F8E34

monochromatic

#163443 #255771 #347B9F #4C9CC4 #7AB5D3

Accessibility & contrast

On white

4.69

#347B9F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#347B9F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #347B9F

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##347B9F	#FFFFFF	#000000	##FFFFFF
##347B9F	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#697AA1

Deuteranopia (green-blind)

#5B6F9E

Tritanopia (blue-blind)

#008587

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #347b9f;
/* rgb */ color: rgb(52, 123, 159);
/* oklch */ color: oklch(55.4% 0.090 233.8);

Tailwind

colors: {
  custom: {
    50: '#78a1bb',
    500: '#347b9f',
    950: '#000000',
  },
}

SCSS

$custom: #347b9f;
$custom-light: #78a1bb;
$custom-dark: #000000;

JSON

{
  "hex": "#347b9f",
  "rgb": {
    "r": 52,
    "g": 123,
    "b": 159
  },
  "hsl": {
    "h": 200.187,
    "s": 50.711,
    "l": 41.373
  },
  "oklch": {
    "l": 0.5537,
    "c": 0.08981,
    "h": 233.8
  },
  "luminance": 0.17399
}

Semantic roles & 50–950 ramp

primary

#347B9F

secondary

#BC8B73

accent

#7D4EDA

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #347B9F

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

Preview Lab → · Contrast checker → · Palette generator →