#3171BD#3171BD

#3171BD is a mid, vivid cyan. Relative luminance 0.161; OKLCH L 54.6% C 0.136 H 254.6°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#3171BD
RGB	rgb(49, 113, 189)
HSL	hsl(213, 59%, 47%)
HSV	hsv(213, 74%, 74%)
CMYK	cmyk(74.1%, 40.2%, 0%, 25.9%)
CIE-LAB	lab(47.15, 5.89, -45.81)
CIE-LCH	lch(47.15, 46.19, 277.33°)
OKLab	oklab(54.57% -0.036 -0.1308)
OKLCH	oklch(54.57% 0.136 254.6)
XYZ	xyz(16.3537, 16.1355, 50.3868)
Luminance	0.1614 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3171BD #BD7D31

analogous

#31B7BD #3171BD #3731BD

triadic

#3171BD #BD3171 #71BD31

tetradic

#3171BD #BD31B7 #BD7D31 #31BD37

square

#3171BD #BD31B7 #BD7D31 #31BD37

split-complementary

#3171BD #BD3731 #B7BD31

monochromatic

#18375C #24548C #3171BD #5890D4 #88B0E0

Accessibility & contrast

On white

4.97

#3171BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#3171BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3171BD

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

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

#4D77C0

Deuteranopia (green-blind)

#366ABB

Tritanopia (blue-blind)

#00838E

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3171bd;
/* rgb */ color: rgb(49, 113, 189);
/* oklch */ color: oklch(54.6% 0.136 254.6);

Tailwind

colors: {
  custom: {
    50: '#7c99d1',
    500: '#3171bd',
    950: '#000000',
  },
}

SCSS

$custom: #3171bd;
$custom-light: #7c99d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3171bd",
  "rgb": {
    "r": 49,
    "g": 113,
    "b": 189
  },
  "hsl": {
    "h": 212.571,
    "s": 58.824,
    "l": 46.667
  },
  "oklch": {
    "l": 0.54567,
    "c": 0.13563,
    "h": 254.6
  },
  "luminance": 0.16137
}

Semantic roles & 50–950 ramp

primary

#3171BD

secondary

#CAA880

accent

#9B46E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3171BD

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

Preview Lab → · Contrast checker → · Palette generator →