#3170B2#3170B2

#3170B2 is a mid, vivid cyan. Relative luminance 0.155; OKLCH L 53.7% C 0.122 H 252.0°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#3170B2
RGB	rgb(49, 112, 178)
HSL	hsl(211, 57%, 45%)
HSV	hsv(211, 72%, 70%)
CMYK	cmyk(72.5%, 37.1%, 0%, 30.2%)
CIE-LAB	lab(46.25, 2.44, -40.87)
CIE-LCH	lch(46.25, 40.94, 273.42°)
OKLab	oklab(53.67% -0.0377 -0.1163)
OKLCH	oklch(53.67% 0.122 252)
XYZ	xyz(15.0937, 15.4540, 44.2983)
Luminance	0.1546 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3170B2 #B27331

analogous

#31B0B2 #3170B2 #3331B2

triadic

#3170B2 #B23170 #70B231

tetradic

#3170B2 #B231B0 #B27331 #31B233

square

#3170B2 #B231B0 #B27331 #31B233

split-complementary

#3170B2 #B23331 #B0B231

monochromatic

#173452 #245282 #3170B2 #518FCF #81AEDC

Accessibility & contrast

On white

5.13

#3170B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#3170B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3170B2

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3170B2	#FFFFFF	#000000	##FFFFFF
##3170B2	1.00	5.13	4.09	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5274B5

Deuteranopia (green-blind)

#3F68B1

Tritanopia (blue-blind)

#008088

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3170b2;
/* rgb */ color: rgb(49, 112, 178);
/* oklch */ color: oklch(53.7% 0.122 252.0);

Tailwind

colors: {
  custom: {
    50: '#7998c9',
    500: '#3170b2',
    950: '#000000',
  },
}

SCSS

$custom: #3170b2;
$custom-light: #7998c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3170b2",
  "rgb": {
    "r": 49,
    "g": 112,
    "b": 178
  },
  "hsl": {
    "h": 210.698,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.53665,
    "c": 0.12226,
    "h": 252
  },
  "luminance": 0.15456
}

Semantic roles & 50–950 ramp

primary

#3170B2

secondary

#C5A079

accent

#9648E0

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #3170B2

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

Preview Lab → · Contrast checker → · Palette generator →