#3178C0#3178C0

#3178C0 is a mid, vivid cyan. Relative luminance 0.179; OKLCH L 56.3% C 0.132 H 251.6°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#3178C0
RGB	rgb(49, 120, 192)
HSL	hsl(210, 59%, 47%)
HSV	hsv(210, 74%, 75%)
CMYK	cmyk(74.5%, 37.5%, 0%, 24.7%)
CIE-LAB	lab(49.36, 2.68, -44.03)
CIE-LCH	lch(49.36, 44.11, 273.49°)
OKLab	oklab(56.35% -0.0416 -0.1254)
OKLCH	oklch(56.35% 0.132 251.6)
XYZ	xyz(17.4940, 17.8897, 52.3900)
Luminance	0.1789 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3178C0 #C07931

analogous

#31BFC0 #3178C0 #3231C0

triadic

#3178C0 #C03178 #78C031

tetradic

#3178C0 #C031BF #C07931 #31C032

square

#3178C0 #C031BF #C07931 #31C032

split-complementary

#3178C0 #C03231 #BFC031

monochromatic

#183B5E #255A8F #3178C0 #5997D5 #8AB5E1

Accessibility & contrast

On white

4.59

#3178C0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#3178C0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3178C0

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3178C0	#FFFFFF	#000000	##FFFFFF
##3178C0	1.00	4.59	4.58	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.58	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#577DC3

Deuteranopia (green-blind)

#416FBF

Tritanopia (blue-blind)

#008993

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3178c0;
/* rgb */ color: rgb(49, 120, 192);
/* oklch */ color: oklch(56.3% 0.132 251.6);

Tailwind

colors: {
  custom: {
    50: '#7c9ed3',
    500: '#3178c0',
    950: '#000000',
  },
}

SCSS

$custom: #3178c0;
$custom-light: #7c9ed3;
$custom-dark: #000000;

JSON

{
  "hex": "#3178c0",
  "rgb": {
    "r": 49,
    "g": 120,
    "b": 192
  },
  "hsl": {
    "h": 210.21,
    "s": 59.336,
    "l": 47.255
  },
  "oklch": {
    "l": 0.56346,
    "c": 0.13216,
    "h": 251.6
  },
  "luminance": 0.17892
}

Semantic roles & 50–950 ramp

primary

#3178C0

secondary

#CBA782

accent

#9445E3

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3178C0

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

Preview Lab → · Contrast checker → · Palette generator →