#3178C9#3178C9

#3178C9 is a mid, vivid cyan. Relative luminance 0.183; OKLCH L 56.9% C 0.144 H 254.1°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3178C9
RGB	rgb(49, 120, 201)
HSL	hsl(212, 61%, 49%)
HSV	hsv(212, 76%, 79%)
CMYK	cmyk(75.6%, 40.3%, 0%, 21.2%)
CIE-LAB	lab(49.86, 6.01, -48.39)
CIE-LCH	lch(49.86, 48.76, 277.07°)
OKLab	oklab(56.9% -0.0395 -0.1382)
OKLCH	oklch(56.9% 0.144 254.1)
XYZ	xyz(18.5218, 18.3008, 57.8033)
Luminance	0.1830 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3178C9 #C98231

analogous

#31C4C9 #3178C9 #3631C9

triadic

#3178C9 #C93178 #78C931

tetradic

#3178C9 #C931C4 #C98231 #31C936

square

#3178C9 #C931C4 #C98231 #31C936

split-complementary

#3178C9 #C93631 #C4C931

monochromatic

#193D67 #255B98 #3178C9 #5F98D8 #90B7E4

Accessibility & contrast

On white

4.51

#3178C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#3178C9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3178C9

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3178C9	#FFFFFF	#000000	##000000
##3178C9	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#517ECC

Deuteranopia (green-blind)

#3870C7

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3178c9;
/* rgb */ color: rgb(49, 120, 201);
/* oklch */ color: oklch(56.9% 0.144 254.1);

Tailwind

colors: {
  custom: {
    50: '#7e9eda',
    500: '#3178c9',
    950: '#000000',
  },
}

SCSS

$custom: #3178c9;
$custom-light: #7e9eda;
$custom-dark: #000000;

JSON

{
  "hex": "#3178c9",
  "rgb": {
    "r": 49,
    "g": 120,
    "b": 201
  },
  "hsl": {
    "h": 211.974,
    "s": 60.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.56895,
    "c": 0.14376,
    "h": 254.1
  },
  "luminance": 0.18303
}

Semantic roles & 50–950 ramp

primary

#3178C9

secondary

#CFAD87

accent

#9944E4

background

#F8F9FD

surface

#EFF2FB

border

#CACCD4

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #3178C9

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

Preview Lab → · Contrast checker → · Palette generator →