#3178BA#3178BA

#3178BA is a mid, vivid cyan. Relative luminance 0.176; OKLCH L 56.0% C 0.125 H 249.7°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3178BA
RGB	rgb(49, 120, 186)
HSL	hsl(209, 58%, 46%)
HSV	hsv(209, 74%, 73%)
CMYK	cmyk(73.7%, 35.5%, 0%, 27.1%)
CIE-LAB	lab(49.04, 0.48, -41.08)
CIE-LCH	lch(49.04, 41.08, 270.67°)
OKLab	oklab(55.99% -0.0432 -0.1168)
OKLCH	oklch(55.99% 0.125 249.7)
XYZ	xyz(16.8427, 17.6292, 48.9600)
Luminance	0.1763 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3178BA #BA7331

analogous

#31BAB7 #3178BA #3133BA

triadic

#3178BA #BA3178 #78BA31

tetradic

#3178BA #B731BA #BA7331 #33BA31

square

#3178BA #B731BA #BA7331 #33BA31

split-complementary

#3178BA #BA3133 #BAB731

monochromatic

#173959 #24598A #3178BA #5696D2 #86B4DF

Accessibility & contrast

On white

4.64

#3178BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#3178BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3178BA

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3178BA	#FFFFFF	#000000	##FFFFFF
##3178BA	1.00	4.64	4.53	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7CBD

Deuteranopia (green-blind)

#466FB9

Tritanopia (blue-blind)

#008890

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3178ba;
/* rgb */ color: rgb(49, 120, 186);
/* oklch */ color: oklch(56.0% 0.125 249.7);

Tailwind

colors: {
  custom: {
    50: '#7b9ecf',
    500: '#3178ba',
    950: '#000000',
  },
}

SCSS

$custom: #3178ba;
$custom-light: #7b9ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#3178ba",
  "rgb": {
    "r": 49,
    "g": 120,
    "b": 186
  },
  "hsl": {
    "h": 208.905,
    "s": 58.298,
    "l": 46.078
  },
  "oklch": {
    "l": 0.55992,
    "c": 0.12454,
    "h": 249.7
  },
  "luminance": 0.17631
}

Semantic roles & 50–950 ramp

primary

#3178BA

secondary

#C9A27E

accent

#9146E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3178BA

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

Preview Lab → · Contrast checker → · Palette generator →