#3775CB#3775CB

#3775CB is a mid, vivid cyan. Relative luminance 0.178; OKLCH L 56.6% C 0.148 H 257.3°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3775CB
RGB	rgb(55, 117, 203)
HSL	hsl(215, 59%, 51%)
HSV	hsv(215, 73%, 80%)
CMYK	cmyk(72.9%, 42.4%, 0%, 20.4%)
CIE-LAB	lab(49.31, 9.38, -50.40)
CIE-LCH	lch(49.31, 51.27, 280.54°)
OKLab	oklab(56.56% -0.0326 -0.1441)
OKLCH	oklch(56.56% 0.148 257.3)
XYZ	xyz(18.7124, 17.8445, 58.9465)
Luminance	0.1785 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3775CB #CB8D37

analogous

#37BFCB #3775CB #4337CB

triadic

#3775CB #CB3775 #75CB37

tetradic

#3775CB #CB37BF #CB8D37 #37CB43

square

#3775CB #CB37BF #CB8D37 #37CB43

split-complementary

#3775CB #CB4337 #BFCB37

monochromatic

#1C3D6C #29599C #3775CB #6897D8 #98B8E4

Accessibility & contrast

On white

4.60

#3775CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#3775CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3775CB

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3775CB	#FFFFFF	#000000	##FFFFFF
##3775CB	1.00	4.60	4.57	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.57	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: #3775cb;
/* rgb */ color: rgb(55, 117, 203);
/* oklch */ color: oklch(56.6% 0.148 257.3);

Tailwind

colors: {
  custom: {
    50: '#809cdb',
    500: '#3775cb',
    950: '#000000',
  },
}

SCSS

$custom: #3775cb;
$custom-light: #809cdb;
$custom-dark: #000000;

JSON

{
  "hex": "#3775cb",
  "rgb": {
    "r": 55,
    "g": 117,
    "b": 203
  },
  "hsl": {
    "h": 214.865,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.56558,
    "c": 0.14775,
    "h": 257.3
  },
  "luminance": 0.17847
}

Semantic roles & 50–950 ramp

primary

#3775CB

secondary

#D0B48E

accent

#A146E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3775CB

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

Preview Lab → · Contrast checker → · Palette generator →