#347B9B#347B9B

#347B9B is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.2% C 0.086 H 230.7°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#347B9B
RGB	rgb(52, 123, 155)
HSL	hsl(199, 50%, 41%)
HSV	hsv(199, 66%, 61%)
CMYK	cmyk(66.5%, 20.6%, 0%, 39.2%)
CIE-LAB	lab(48.59, -11.76, -23.76)
CIE-LCH	lch(48.59, 26.51, 243.67°)
OKLab	oklab(55.18% -0.0545 -0.0665)
OKLCH	oklch(55.18% 0.086 230.7)
XYZ	xyz(14.4132, 17.2610, 33.5761)
Luminance	0.1726 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#347B9B #9B5434

analogous

#349B87 #347B9B #34479B

triadic

#347B9B #9B347B #7B9B34

tetradic

#347B9B #87349B #9B5434 #479B34

square

#347B9B #87349B #9B5434 #479B34

split-complementary

#347B9B #9B3447 #9B8734

monochromatic

#15323F #25576D #347B9B #4A9DC2 #78B6D2

Accessibility & contrast

On white

4.72

#347B9B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#347B9B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #347B9B

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##347B9B	#FFFFFF	#000000	##FFFFFF
##347B9B	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B799D

Deuteranopia (green-blind)

#5D6F9B

Tritanopia (blue-blind)

#008486

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #347b9b;
/* rgb */ color: rgb(52, 123, 155);
/* oklch */ color: oklch(55.2% 0.086 230.7);

Tailwind

colors: {
  custom: {
    50: '#77a1b8',
    500: '#347b9b',
    950: '#000000',
  },
}

SCSS

$custom: #347b9b;
$custom-light: #77a1b8;
$custom-dark: #000000;

JSON

{
  "hex": "#347b9b",
  "rgb": {
    "r": 52,
    "g": 123,
    "b": 155
  },
  "hsl": {
    "h": 198.641,
    "s": 49.758,
    "l": 40.588
  },
  "oklch": {
    "l": 0.55179,
    "c": 0.086,
    "h": 230.7
  },
  "luminance": 0.17263
}

Semantic roles & 50–950 ramp

primary

#347B9B

secondary

#BA8771

accent

#7A4FD9

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #347B9B

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

Preview Lab → · Contrast checker → · Palette generator →