#3775CE#3775CE

#3775CE is a mid, vivid blue. Relative luminance 0.180; OKLCH L 56.8% C 0.152 H 257.8°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3775CE
RGB	rgb(55, 117, 206)
HSL	hsl(215, 61%, 51%)
HSV	hsv(215, 73%, 81%)
CMYK	cmyk(73.3%, 43.2%, 0%, 19.2%)
CIE-LAB	lab(49.48, 10.48, -51.84)
CIE-LCH	lch(49.48, 52.88, 281.43°)
OKLab	oklab(56.75% -0.032 -0.1483)
OKLCH	oklch(56.75% 0.152 257.8)
XYZ	xyz(19.0733, 17.9889, 60.8475)
Luminance	0.1799 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3775CE #CE9037

analogous

#37C1CE #3775CE #4437CE

triadic

#3775CE #CE3775 #75CE37

tetradic

#3775CE #CE37C1 #CE9037 #37CE44

square

#3775CE #CE37C1 #CE9037 #37CE44

split-complementary

#3775CE #CE4437 #C1CE37

monochromatic

#1B3E6F #2759A0 #3775CE #6897DA #99B9E6

Accessibility & contrast

On white

4.57

#3775CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#3775CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3775CE

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3775CE	#FFFFFF	#000000	##000000
##3775CE	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#497DD1

Deuteranopia (green-blind)

#2D6FCC

Tritanopia (blue-blind)

#008A97

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3775ce;
/* rgb */ color: rgb(55, 117, 206);
/* oklch */ color: oklch(56.8% 0.152 257.8);

Tailwind

colors: {
  custom: {
    50: '#819cdd',
    500: '#3775ce',
    950: '#000000',
  },
}

SCSS

$custom: #3775ce;
$custom-light: #819cdd;
$custom-dark: #000000;

JSON

{
  "hex": "#3775ce",
  "rgb": {
    "r": 55,
    "g": 117,
    "b": 206
  },
  "hsl": {
    "h": 215.364,
    "s": 60.643,
    "l": 51.176
  },
  "oklch": {
    "l": 0.56751,
    "c": 0.15173,
    "h": 257.8
  },
  "luminance": 0.17991
}

Semantic roles & 50–950 ramp

primary

#3775CE

secondary

#D2B68F

accent

#A244E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3775CE

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

Preview Lab → · Contrast checker → · Palette generator →