#3179B5#3179B5

#3179B5 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.9% C 0.117 H 247.1°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#3179B5
RGB	rgb(49, 121, 181)
HSL	hsl(207, 57%, 45%)
HSV	hsv(207, 73%, 71%)
CMYK	cmyk(72.9%, 33.1%, 0%, 29%)
CIE-LAB	lab(49.08, -1.94, -38.13)
CIE-LCH	lch(49.08, 38.18, 267.09°)
OKLab	oklab(55.94% -0.0456 -0.1082)
OKLCH	oklch(55.94% 0.117 247.1)
XYZ	xyz(16.4413, 17.6621, 46.2497)
Luminance	0.1766 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3179B5 #B56D31

analogous

#31B5AF #3179B5 #3137B5

triadic

#3179B5 #B53179 #79B531

tetradic

#3179B5 #AF31B5 #B56D31 #37B531

square

#3179B5 #AF31B5 #B56D31 #37B531

split-complementary

#3179B5 #B53137 #B5AF31

monochromatic

#173955 #245985 #3179B5 #5397D0 #83B4DD

Accessibility & contrast

On white

4.63

#3179B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#3179B5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3179B5

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3179B5	#FFFFFF	#000000	##FFFFFF
##3179B5	1.00	4.63	4.53	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7BB8

Deuteranopia (green-blind)

#4B6FB4

Tritanopia (blue-blind)

#00878F

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3179b5;
/* rgb */ color: rgb(49, 121, 181);
/* oklch */ color: oklch(55.9% 0.117 247.1);

Tailwind

colors: {
  custom: {
    50: '#7a9fcb',
    500: '#3179b5',
    950: '#000000',
  },
}

SCSS

$custom: #3179b5;
$custom-light: #7a9fcb;
$custom-dark: #000000;

JSON

{
  "hex": "#3179b5",
  "rgb": {
    "r": 49,
    "g": 121,
    "b": 181
  },
  "hsl": {
    "h": 207.273,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.5594,
    "c": 0.11738,
    "h": 247.1
  },
  "luminance": 0.17664
}

Semantic roles & 50–950 ramp

primary

#3179B5

secondary

#C79D7B

accent

#8D47E1

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3179B5

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

Preview Lab → · Contrast checker → · Palette generator →