#3170B1#3170B1

#3170B1 is a mid, vivid cyan. Relative luminance 0.154; OKLCH L 53.6% C 0.121 H 251.7°. Best body text is #FFFFFF at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#3170B1
RGB	rgb(49, 112, 177)
HSL	hsl(210, 57%, 44%)
HSV	hsv(210, 72%, 69%)
CMYK	cmyk(72.3%, 36.7%, 0%, 30.6%)
CIE-LAB	lab(46.20, 2.08, -40.37)
CIE-LCH	lch(46.20, 40.43, 272.94°)
OKLab	oklab(53.61% -0.038 -0.1148)
OKLCH	oklch(53.61% 0.121 251.7)
XYZ	xyz(14.9936, 15.4140, 43.7714)
Luminance	0.1542 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3170B1 #B17231

analogous

#31B0B1 #3170B1 #3231B1

triadic

#3170B1 #B13170 #70B131

tetradic

#3170B1 #B131B0 #B17231 #31B132

square

#3170B1 #B131B0 #B17231 #31B132

split-complementary

#3170B1 #B13231 #B0B131

monochromatic

#163351 #245281 #3170B1 #518FCF #80ADDC

Accessibility & contrast

On white

5.14

#3170B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.08

#3170B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3170B1

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3170B1	#FFFFFF	#000000	##FFFFFF
##3170B1	1.00	5.14	4.08	5.14
#FFFFFF	5.14	1.00	21.00	1.00
#000000	4.08	21.00	1.00	21.00
##FFFFFF	5.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5274B4

Deuteranopia (green-blind)

#4068B0

Tritanopia (blue-blind)

#007F88

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3170b1;
/* rgb */ color: rgb(49, 112, 177);
/* oklch */ color: oklch(53.6% 0.121 251.7);

Tailwind

colors: {
  custom: {
    50: '#7998c8',
    500: '#3170b1',
    950: '#000000',
  },
}

SCSS

$custom: #3170b1;
$custom-light: #7998c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3170b1",
  "rgb": {
    "r": 49,
    "g": 112,
    "b": 177
  },
  "hsl": {
    "h": 210.469,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.53605,
    "c": 0.12097,
    "h": 251.7
  },
  "luminance": 0.15416
}

Semantic roles & 50–950 ramp

primary

#3170B1

secondary

#C59F79

accent

#9548E0

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #3170B1

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

Preview Lab → · Contrast checker → · Palette generator →