#3761C9#3761C9

#3761C9 is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.2% C 0.169 H 264.6°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#3761C9
RGB	rgb(55, 97, 201)
HSL	hsl(223, 57%, 50%)
HSV	hsv(223, 73%, 79%)
CMYK	cmyk(72.6%, 51.7%, 0%, 21.2%)
CIE-LAB	lab(43.62, 21.31, -58.40)
CIE-LCH	lch(43.62, 62.17, 290.05°)
OKLab	oklab(52.15% -0.0158 -0.168)
OKLCH	oklch(52.15% 0.169 264.6)
XYZ	xyz(16.3891, 13.5769, 57.0039)
Luminance	0.1358 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3761C9 #C99F37

analogous

#37AAC9 #3761C9 #5637C9

triadic

#3761C9 #C93761 #61C937

tetradic

#3761C9 #C937AA #C99F37 #37C956

square

#3761C9 #C937AA #C99F37 #37C956

split-complementary

#3761C9 #C95637 #AAC937

monochromatic

#1C3269 #294A99 #3761C9 #6787D6 #97ADE3

Accessibility & contrast

On white

5.65

#3761C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#3761C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3761C9

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3761C9	#FFFFFF	#000000	##FFFFFF
##3761C9	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D6ECD

Deuteranopia (green-blind)

#0061C7

Tritanopia (blue-blind)

#007A8C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3761c9;
/* rgb */ color: rgb(55, 97, 201);
/* oklch */ color: oklch(52.2% 0.169 264.6);

Tailwind

colors: {
  custom: {
    50: '#818dda',
    500: '#3761c9',
    950: '#000000',
  },
}

SCSS

$custom: #3761c9;
$custom-light: #818dda;
$custom-dark: #000000;

JSON

{
  "hex": "#3761c9",
  "rgb": {
    "r": 55,
    "g": 97,
    "b": 201
  },
  "hsl": {
    "h": 222.74,
    "s": 57.48,
    "l": 50.196
  },
  "oklch": {
    "l": 0.52152,
    "c": 0.16872,
    "h": 264.6
  },
  "luminance": 0.13579
}

Semantic roles & 50–950 ramp

primary

#3761C9

secondary

#CFBC8D

accent

#B547E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3761C9

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

Preview Lab → · Contrast checker → · Palette generator →