#3670B9#3670B9

#3670B9 is a mid, vivid cyan. Relative luminance 0.159; OKLCH L 54.3% C 0.130 H 255.4°. Best body text is #FFFFFF at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#3670B9
RGB	rgb(54, 112, 185)
HSL	hsl(213, 55%, 47%)
HSV	hsv(213, 71%, 73%)
CMYK	cmyk(70.8%, 39.5%, 0%, 27.5%)
CIE-LAB	lab(46.81, 5.75, -44.04)
CIE-LCH	lch(46.81, 44.41, 277.44°)
OKLab	oklab(54.27% -0.0326 -0.1255)
OKLCH	oklch(54.27% 0.13 255.4)
XYZ	xyz(16.0692, 15.8737, 48.1066)
Luminance	0.1588 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3670B9 #B97F36

analogous

#36B2B9 #3670B9 #3D36B9

triadic

#3670B9 #B93670 #70B936

tetradic

#3670B9 #B936B2 #B97F36 #36B93D

square

#3670B9 #B936B2 #B97F36 #36B93D

split-complementary

#3670B9 #B93D36 #B2B936

monochromatic

#1A375A #28538A #3670B9 #5D90D0 #8CB0DD

Accessibility & contrast

On white

5.03

#3670B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#3670B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3670B9

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3670B9	#FFFFFF	#000000	##FFFFFF
##3670B9	1.00	5.03	4.18	5.03
#FFFFFF	5.03	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E76BC

Deuteranopia (green-blind)

#3A69B8

Tritanopia (blue-blind)

#00818B

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3670b9;
/* rgb */ color: rgb(54, 112, 185);
/* oklch */ color: oklch(54.3% 0.130 255.4);

Tailwind

colors: {
  custom: {
    50: '#7d98ce',
    500: '#3670b9',
    950: '#000000',
  },
}

SCSS

$custom: #3670b9;
$custom-light: #7d98ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3670b9",
  "rgb": {
    "r": 54,
    "g": 112,
    "b": 185
  },
  "hsl": {
    "h": 213.435,
    "s": 54.812,
    "l": 46.863
  },
  "oklch": {
    "l": 0.54274,
    "c": 0.12968,
    "h": 255.4
  },
  "luminance": 0.15875
}

Semantic roles & 50–950 ramp

primary

#3670B9

secondary

#C8A983

accent

#9C4ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3670B9

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

Preview Lab → · Contrast checker → · Palette generator →