#3773C8#3773C8

#3773C8 is a mid, vivid blue. Relative luminance 0.172; OKLCH L 55.9% C 0.146 H 257.6°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#3773C8
RGB	rgb(55, 115, 200)
HSL	hsl(215, 57%, 50%)
HSV	hsv(215, 73%, 78%)
CMYK	cmyk(72.5%, 42.5%, 0%, 21.6%)
CIE-LAB	lab(48.56, 9.52, -49.88)
CIE-LCH	lch(48.56, 50.78, 280.81°)
OKLab	oklab(55.93% -0.0314 -0.1426)
OKLCH	oklch(55.93% 0.146 257.6)
XYZ	xyz(18.1278, 17.2418, 57.0050)
Luminance	0.1724 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3773C8 #C88C37

analogous

#37BCC8 #3773C8 #4337C8

triadic

#3773C8 #C83773 #73C837

tetradic

#3773C8 #C837BC #C88C37 #37C843

square

#3773C8 #C837BC #C88C37 #37C843

split-complementary

#3773C8 #C84337 #BCC837

monochromatic

#1D3C68 #2A5798 #3773C8 #6795D5 #97B6E2

Accessibility & contrast

On white

4.72

#3773C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#3773C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3773C8

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3773C8	#FFFFFF	#000000	##FFFFFF
##3773C8	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A7BCB

Deuteranopia (green-blind)

#306DC6

Tritanopia (blue-blind)

#008794

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3773c8;
/* rgb */ color: rgb(55, 115, 200);
/* oklch */ color: oklch(55.9% 0.146 257.6);

Tailwind

colors: {
  custom: {
    50: '#809ad9',
    500: '#3773c8',
    950: '#000000',
  },
}

SCSS

$custom: #3773c8;
$custom-light: #809ad9;
$custom-dark: #000000;

JSON

{
  "hex": "#3773c8",
  "rgb": {
    "r": 55,
    "g": 115,
    "b": 200
  },
  "hsl": {
    "h": 215.172,
    "s": 56.863,
    "l": 50
  },
  "oklch": {
    "l": 0.55925,
    "c": 0.14602,
    "h": 257.6
  },
  "luminance": 0.17244
}

Semantic roles & 50–950 ramp

primary

#3773C8

secondary

#CEB38D

accent

#A148E0

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3773C8

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

Preview Lab → · Contrast checker → · Palette generator →