#347D9B#347D9B

#347D9B is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 55.7% C 0.085 H 228.4°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#347D9B
RGB	rgb(52, 125, 155)
HSL	hsl(197, 50%, 41%)
HSV	hsv(197, 66%, 61%)
CMYK	cmyk(66.5%, 19.4%, 0%, 39.2%)
CIE-LAB	lab(49.21, -12.90, -22.81)
CIE-LCH	lch(49.21, 26.20, 240.52°)
OKLab	oklab(55.67% -0.0567 -0.0638)
OKLCH	oklch(55.67% 0.085 228.4)
XYZ	xyz(14.6638, 17.7623, 33.6597)
Luminance	0.1776 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#347D9B #9B5234

analogous

#349B85 #347D9B #34499B

triadic

#347D9B #9B347D #7D9B34

tetradic

#347D9B #85349B #9B5234 #499B34

square

#347D9B #85349B #9B5234 #499B34

split-complementary

#347D9B #9B3449 #9B8534

monochromatic

#15333F #25586D #347D9B #4A9FC2 #78B7D2

Accessibility & contrast

On white

4.61

#347D9B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#347D9B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #347D9B

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##347D9B	#FFFFFF	#000000	##FFFFFF
##347D9B	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7B9D

Deuteranopia (green-blind)

#5F709B

Tritanopia (blue-blind)

#008687

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #347d9b;
/* rgb */ color: rgb(52, 125, 155);
/* oklch */ color: oklch(55.7% 0.085 228.4);

Tailwind

colors: {
  custom: {
    50: '#77a2b8',
    500: '#347d9b',
    950: '#000000',
  },
}

SCSS

$custom: #347d9b;
$custom-light: #77a2b8;
$custom-dark: #000000;

JSON

{
  "hex": "#347d9b",
  "rgb": {
    "r": 52,
    "g": 125,
    "b": 155
  },
  "hsl": {
    "h": 197.476,
    "s": 49.758,
    "l": 40.588
  },
  "oklch": {
    "l": 0.55673,
    "c": 0.08533,
    "h": 228.4
  },
  "luminance": 0.17764
}

Semantic roles & 50–950 ramp

primary

#347D9B

secondary

#BA8671

accent

#774FD9

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#0A0F11

muted

#7C7F80

Preview Lab

Preview with #347D9B

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

Preview Lab → · Contrast checker → · Palette generator →