#3761BC#3761BC

#3761BC is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.2% C 0.151 H 263.4°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#3761BC
RGB	rgb(55, 97, 188)
HSL	hsl(221, 55%, 48%)
HSV	hsv(221, 71%, 74%)
CMYK	cmyk(70.7%, 48.4%, 0%, 26.3%)
CIE-LAB	lab(42.75, 16.51, -52.27)
CIE-LCH	lch(42.75, 54.82, 287.53°)
OKLab	oklab(51.21% -0.0174 -0.1499)
OKLCH	oklch(51.21% 0.151 263.4)
XYZ	xyz(14.9241, 12.9909, 49.2882)
Luminance	0.1299 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3761BC #BC9237

analogous

#37A3BC #3761BC #5037BC

triadic

#3761BC #BC3761 #61BC37

tetradic

#3761BC #BC37A3 #BC9237 #37BC50

square

#3761BC #BC37A3 #BC9237 #37BC50

split-complementary

#3761BC #BC5037 #A3BC37

monochromatic

#1B305D #29498D #3761BC #6083D0 #8FA8DE

Accessibility & contrast

On white

5.84

#3761BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#3761BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3761BC

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3761BC	#FFFFFF	#000000	##FFFFFF
##3761BC	1.00	5.84	3.60	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F6BBF

Deuteranopia (green-blind)

#075FBA

Tritanopia (blue-blind)

#007685

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3761bc;
/* rgb */ color: rgb(55, 97, 188);
/* oklch */ color: oklch(51.2% 0.151 263.4);

Tailwind

colors: {
  custom: {
    50: '#7e8dd1',
    500: '#3761bc',
    950: '#000000',
  },
}

SCSS

$custom: #3761bc;
$custom-light: #7e8dd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3761bc",
  "rgb": {
    "r": 55,
    "g": 97,
    "b": 188
  },
  "hsl": {
    "h": 221.053,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.5121,
    "c": 0.15095,
    "h": 263.4
  },
  "luminance": 0.12992
}

Semantic roles & 50–950 ramp

primary

#3761BC

secondary

#C9B486

accent

#AF4ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3761BC

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

Preview Lab → · Contrast checker → · Palette generator →