#3670B3#3670B3

#3670B3 is a mid, vivid cyan. Relative luminance 0.156; OKLCH L 53.9% C 0.122 H 253.8°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#3670B3
RGB	rgb(54, 112, 179)
HSL	hsl(212, 54%, 46%)
HSV	hsv(212, 70%, 70%)
CMYK	cmyk(69.8%, 37.4%, 0%, 29.8%)
CIE-LAB	lab(46.48, 3.56, -41.08)
CIE-LCH	lch(46.48, 41.23, 274.96°)
OKLab	oklab(53.91% -0.034 -0.1168)
OKLCH	oklch(53.91% 0.122 253.8)
XYZ	xyz(15.4492, 15.6257, 44.8409)
Luminance	0.1563 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3670B3 #B37936

analogous

#36AEB3 #3670B3 #3A36B3

triadic

#3670B3 #B33670 #70B336

tetradic

#3670B3 #B336AE #B37936 #36B33A

square

#3670B3 #B336AE #B37936 #36B33A

split-complementary

#3670B3 #B33A36 #AEB336

monochromatic

#1A3555 #285384 #3670B3 #598FCD #88AFDB

Accessibility & contrast

On white

5.09

#3670B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#3670B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3670B3

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3670B3	#FFFFFF	#000000	##FFFFFF
##3670B3	1.00	5.09	4.13	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5275B6

Deuteranopia (green-blind)

#3F69B2

Tritanopia (blue-blind)

#008089

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3670b3;
/* rgb */ color: rgb(54, 112, 179);
/* oklch */ color: oklch(53.9% 0.122 253.8);

Tailwind

colors: {
  custom: {
    50: '#7c98ca',
    500: '#3670b3',
    950: '#000000',
  },
}

SCSS

$custom: #3670b3;
$custom-light: #7c98ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3670b3",
  "rgb": {
    "r": 54,
    "g": 112,
    "b": 179
  },
  "hsl": {
    "h": 212.16,
    "s": 53.648,
    "l": 45.686
  },
  "oklch": {
    "l": 0.53911,
    "c": 0.1217,
    "h": 253.8
  },
  "luminance": 0.15627
}

Semantic roles & 50–950 ramp

primary

#3670B3

secondary

#C5A580

accent

#994BDD

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3670B3

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

Preview Lab → · Contrast checker → · Palette generator →