#3171B9#3171B9

#3171B9 is a mid, vivid cyan. Relative luminance 0.160; OKLCH L 54.3% C 0.130 H 253.6°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#3171B9
RGB	rgb(49, 113, 185)
HSL	hsl(212, 58%, 46%)
HSV	hsv(212, 74%, 73%)
CMYK	cmyk(73.5%, 38.9%, 0%, 27.5%)
CIE-LAB	lab(46.93, 4.41, -43.86)
CIE-LCH	lch(46.93, 44.08, 275.74°)
OKLab	oklab(54.32% -0.0369 -0.125)
OKLCH	oklch(54.32% 0.13 253.6)
XYZ	xyz(15.9255, 15.9642, 48.1316)
Luminance	0.1597 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3171B9 #B97931

analogous

#31B5B9 #3171B9 #3531B9

triadic

#3171B9 #B93171 #71B931

tetradic

#3171B9 #B931B5 #B97931 #31B935

square

#3171B9 #B931B5 #B97931 #31B935

split-complementary

#3171B9 #B93531 #B5B931

monochromatic

#173658 #245389 #3171B9 #5590D2 #86B0DF

Accessibility & contrast

On white

5.01

#3171B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#3171B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3171B9

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3171B9	#FFFFFF	#000000	##FFFFFF
##3171B9	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)

#4F76BC

Deuteranopia (green-blind)

#3A69B8

Tritanopia (blue-blind)

#00828C

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3171b9;
/* rgb */ color: rgb(49, 113, 185);
/* oklch */ color: oklch(54.3% 0.130 253.6);

Tailwind

colors: {
  custom: {
    50: '#7b99ce',
    500: '#3171b9',
    950: '#000000',
  },
}

SCSS

$custom: #3171b9;
$custom-light: #7b99ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3171b9",
  "rgb": {
    "r": 49,
    "g": 113,
    "b": 185
  },
  "hsl": {
    "h": 211.765,
    "s": 58.12,
    "l": 45.882
  },
  "oklch": {
    "l": 0.54319,
    "c": 0.13037,
    "h": 253.6
  },
  "luminance": 0.15966
}

Semantic roles & 50–950 ramp

primary

#3171B9

secondary

#C8A57D

accent

#9846E1

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3171B9

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

Preview Lab → · Contrast checker → · Palette generator →