#3172B8#3172B8

#3172B8 is a mid, vivid cyan. Relative luminance 0.161; OKLCH L 54.5% C 0.128 H 252.7°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#3172B8
RGB	rgb(49, 114, 184)
HSL	hsl(211, 58%, 46%)
HSV	hsv(211, 73%, 72%)
CMYK	cmyk(73.4%, 38%, 0%, 27.8%)
CIE-LAB	lab(47.17, 3.42, -42.90)
CIE-LCH	lch(47.17, 43.04, 274.56°)
OKLab	oklab(54.49% -0.0381 -0.1222)
OKLCH	oklch(54.49% 0.128 252.7)
XYZ	xyz(15.9324, 16.1465, 47.6150)
Luminance	0.1615 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3172B8 #B87731

analogous

#31B5B8 #3172B8 #3331B8

triadic

#3172B8 #B83172 #72B831

tetradic

#3172B8 #B831B5 #B87731 #31B833

square

#3172B8 #B831B5 #B87731 #31B833

split-complementary

#3172B8 #B83331 #B5B831

monochromatic

#173657 #245488 #3172B8 #5591D2 #85B0DE

Accessibility & contrast

On white

4.97

#3172B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#3172B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3172B8

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3172B8	#FFFFFF	#000000	##FFFFFF
##3172B8	1.00	4.97	4.23	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5277BB

Deuteranopia (green-blind)

#3D6AB7

Tritanopia (blue-blind)

#00828C

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3172b8;
/* rgb */ color: rgb(49, 114, 184);
/* oklch */ color: oklch(54.5% 0.128 252.7);

Tailwind

colors: {
  custom: {
    50: '#7b9ace',
    500: '#3172b8',
    950: '#000000',
  },
}

SCSS

$custom: #3172b8;
$custom-light: #7b9ace;
$custom-dark: #000000;

JSON

{
  "hex": "#3172b8",
  "rgb": {
    "r": 49,
    "g": 114,
    "b": 184
  },
  "hsl": {
    "h": 211.111,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.54487,
    "c": 0.12802,
    "h": 252.7
  },
  "luminance": 0.16148
}

Semantic roles & 50–950 ramp

primary

#3172B8

secondary

#C8A47D

accent

#9747E1

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3172B8

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

Preview Lab → · Contrast checker → · Palette generator →