#347BBB#347BBB

#347BBB is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 56.8% C 0.122 H 248.8°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#347BBB
RGB	rgb(52, 123, 187)
HSL	hsl(208, 56%, 47%)
HSV	hsv(208, 72%, 73%)
CMYK	cmyk(72.2%, 34.2%, 0%, 26.7%)
CIE-LAB	lab(50.08, -0.55, -40.02)
CIE-LCH	lch(50.08, 40.02, 269.22°)
OKLab	oklab(56.85% -0.044 -0.1136)
OKLCH	oklch(56.85% 0.122 248.8)
XYZ	xyz(17.4654, 18.4819, 49.6510)
Luminance	0.1848 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#347BBB #BB7434

analogous

#34BBB7 #347BBB #3438BB

triadic

#347BBB #BB347B #7BBB34

tetradic

#347BBB #B734BB #BB7434 #38BB34

square

#347BBB #B734BB #BB7434 #38BB34

split-complementary

#347BBB #BB3438 #BBB734

monochromatic

#193C5B #275C8B #347BBB #5B99D1 #8BB7DF

Accessibility & contrast

On white

4.47

#347BBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#347BBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #347BBB

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##347BBB	#FFFFFF	#000000	##000000
##347BBB	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7EBE

Deuteranopia (green-blind)

#4B71BA

Tritanopia (blue-blind)

#008A92

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #347bbb;
/* rgb */ color: rgb(52, 123, 187);
/* oklch */ color: oklch(56.8% 0.122 248.8);

Tailwind

colors: {
  custom: {
    50: '#7ca0d0',
    500: '#347bbb',
    950: '#000000',
  },
}

SCSS

$custom: #347bbb;
$custom-light: #7ca0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#347bbb",
  "rgb": {
    "r": 52,
    "g": 123,
    "b": 187
  },
  "hsl": {
    "h": 208.444,
    "s": 56.485,
    "l": 46.863
  },
  "oklch": {
    "l": 0.56846,
    "c": 0.12183,
    "h": 248.8
  },
  "luminance": 0.18484
}

Semantic roles & 50–950 ramp

primary

#347BBB

secondary

#C9A482

accent

#9048E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #347BBB

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

Preview Lab → · Contrast checker → · Palette generator →