#3675CB#3675CB

#3675CB is a mid, vivid cyan. Relative luminance 0.178; OKLCH L 56.5% C 0.148 H 257.0°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3675CB
RGB	rgb(54, 117, 203)
HSL	hsl(215, 59%, 50%)
HSV	hsv(215, 73%, 80%)
CMYK	cmyk(73.4%, 42.4%, 0%, 20.4%)
CIE-LAB	lab(49.27, 9.24, -50.46)
CIE-LCH	lch(49.27, 51.30, 280.38°)
OKLab	oklab(56.52% -0.0333 -0.1443)
OKLCH	oklch(56.52% 0.148 257)
XYZ	xyz(18.6582, 17.8166, 58.9439)
Luminance	0.1782 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3675CB #CB8C36

analogous

#36BFCB #3675CB #4236CB

triadic

#3675CB #CB3675 #75CB36

tetradic

#3675CB #CB36BF #CB8C36 #36CB42

square

#3675CB #CB36BF #CB8C36 #36CB42

split-complementary

#3675CB #CB4236 #BFCB36

monochromatic

#1C3D6B #28599C #3675CB #6796D8 #97B8E4

Accessibility & contrast

On white

4.60

#3675CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#3675CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3675CB

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3675CB	#FFFFFF	#000000	##FFFFFF
##3675CB	1.00	4.60	4.56	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B7DCE

Deuteranopia (green-blind)

#316FC9

Tritanopia (blue-blind)

#008996

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3675cb;
/* rgb */ color: rgb(54, 117, 203);
/* oklch */ color: oklch(56.5% 0.148 257.0);

Tailwind

colors: {
  custom: {
    50: '#809cdb',
    500: '#3675cb',
    950: '#000000',
  },
}

SCSS

$custom: #3675cb;
$custom-light: #809cdb;
$custom-dark: #000000;

JSON

{
  "hex": "#3675cb",
  "rgb": {
    "r": 54,
    "g": 117,
    "b": 203
  },
  "hsl": {
    "h": 214.631,
    "s": 58.893,
    "l": 50.392
  },
  "oklch": {
    "l": 0.56522,
    "c": 0.14807,
    "h": 257
  },
  "luminance": 0.17819
}

Semantic roles & 50–950 ramp

primary

#3675CB

secondary

#D0B48D

accent

#A046E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3675CB

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

Preview Lab → · Contrast checker → · Palette generator →