#3172B3#3172B3

#3172B3 is a mid, vivid cyan. Relative luminance 0.159; OKLCH L 54.2% C 0.122 H 251.1°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#3172B3
RGB	rgb(49, 114, 179)
HSL	hsl(210, 57%, 45%)
HSV	hsv(210, 73%, 70%)
CMYK	cmyk(72.6%, 36.3%, 0%, 29.8%)
CIE-LAB	lab(46.90, 1.58, -40.43)
CIE-LCH	lch(46.90, 40.46, 272.24°)
OKLab	oklab(54.19% -0.0394 -0.115)
OKLCH	oklch(54.19% 0.122 251.1)
XYZ	xyz(15.4176, 15.9406, 44.9034)
Luminance	0.1594 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3172B3 #B37231

analogous

#31B3B3 #3172B3 #3131B3

triadic

#3172B3 #B33172 #72B331

tetradic

#3172B3 #B331B3 #B37231 #31B331

square

#3172B3 #B331B3 #B37231 #31B331

split-complementary

#3172B3 #B33131 #B3B331

monochromatic

#173553 #245383 #3172B3 #5291D0 #82AFDD

Accessibility & contrast

On white

5.01

#3172B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#3172B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3172B3

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3172B3	#FFFFFF	#000000	##FFFFFF
##3172B3	1.00	5.01	4.19	5.01
#FFFFFF	5.01	1.00	21.00	1.00
#000000	4.19	21.00	1.00	21.00
##FFFFFF	5.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5476B6

Deuteranopia (green-blind)

#416AB2

Tritanopia (blue-blind)

#00818A

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3172b3;
/* rgb */ color: rgb(49, 114, 179);
/* oklch */ color: oklch(54.2% 0.122 251.1);

Tailwind

colors: {
  custom: {
    50: '#7a9aca',
    500: '#3172b3',
    950: '#000000',
  },
}

SCSS

$custom: #3172b3;
$custom-light: #7a9aca;
$custom-dark: #000000;

JSON

{
  "hex": "#3172b3",
  "rgb": {
    "r": 49,
    "g": 114,
    "b": 179
  },
  "hsl": {
    "h": 210,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.54188,
    "c": 0.12153,
    "h": 251.1
  },
  "luminance": 0.15942
}

Semantic roles & 50–950 ramp

primary

#3172B3

secondary

#C6A07A

accent

#9448E0

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3172B3

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

Preview Lab → · Contrast checker → · Palette generator →