#3171BC#3171BC

#3171BC is a mid, vivid cyan. Relative luminance 0.161; OKLCH L 54.5% C 0.134 H 254.4°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#3171BC
RGB	rgb(49, 113, 188)
HSL	hsl(212, 59%, 46%)
HSV	hsv(212, 74%, 74%)
CMYK	cmyk(73.9%, 39.9%, 0%, 26.3%)
CIE-LAB	lab(47.10, 5.52, -45.33)
CIE-LCH	lch(47.10, 45.66, 276.94°)
OKLab	oklab(54.5% -0.0362 -0.1293)
OKLCH	oklch(54.5% 0.134 254.4)
XYZ	xyz(16.2455, 16.0922, 49.8171)
Luminance	0.1609 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3171BC #BC7C31

analogous

#31B7BC #3171BC #3731BC

triadic

#3171BC #BC3171 #71BC31

tetradic

#3171BC #BC31B7 #BC7C31 #31BC37

square

#3171BC #BC31B7 #BC7C31 #31BC37

split-complementary

#3171BC #BC3731 #B7BC31

monochromatic

#18375B #24548B #3171BC #5790D3 #88B0E0

Accessibility & contrast

On white

4.98

#3171BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#3171BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3171BC

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3171BC	#FFFFFF	#000000	##FFFFFF
##3171BC	1.00	4.98	4.22	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E77BF

Deuteranopia (green-blind)

#376ABA

Tritanopia (blue-blind)

#00838D

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3171bc;
/* rgb */ color: rgb(49, 113, 188);
/* oklch */ color: oklch(54.5% 0.134 254.4);

Tailwind

colors: {
  custom: {
    50: '#7b99d0',
    500: '#3171bc',
    950: '#000000',
  },
}

SCSS

$custom: #3171bc;
$custom-light: #7b99d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3171bc",
  "rgb": {
    "r": 49,
    "g": 113,
    "b": 188
  },
  "hsl": {
    "h": 212.374,
    "s": 58.65,
    "l": 46.471
  },
  "oklch": {
    "l": 0.54504,
    "c": 0.13432,
    "h": 254.4
  },
  "luminance": 0.16094
}

Semantic roles & 50–950 ramp

primary

#3171BC

secondary

#CAA77F

accent

#9A46E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3171BC

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

Preview Lab → · Contrast checker → · Palette generator →