#3767B1#3767B1

#3767B1 is a mid, vivid blue. Relative luminance 0.137; OKLCH L 51.8% C 0.129 H 258.8°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#3767B1
RGB	rgb(55, 103, 177)
HSL	hsl(216, 53%, 45%)
HSV	hsv(216, 69%, 69%)
CMYK	cmyk(68.9%, 41.8%, 0%, 30.6%)
CIE-LAB	lab(43.78, 8.63, -44.20)
CIE-LCH	lch(43.78, 45.04, 281.05°)
OKLab	oklab(51.78% -0.0249 -0.1261)
OKLCH	oklch(51.78% 0.129 258.8)
XYZ	xyz(14.3588, 13.6856, 43.4713)
Luminance	0.1369 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3767B1 #B18137

analogous

#37A4B1 #3767B1 #4437B1

triadic

#3767B1 #B13767 #67B137

tetradic

#3767B1 #B137A4 #B18137 #37B144

square

#3767B1 #B137A4 #B18137 #37B144

split-complementary

#3767B1 #B14437 #A4B137

monochromatic

#1A3154 #284C82 #3767B1 #5A86CC #88A8DA

Accessibility & contrast

On white

5.62

#3767B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#3767B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3767B1

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3767B1	#FFFFFF	#000000	##FFFFFF
##3767B1	1.00	5.62	3.74	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#446EB4

Deuteranopia (green-blind)

#3162AF

Tritanopia (blue-blind)

#007883

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3767b1;
/* rgb */ color: rgb(55, 103, 177);
/* oklch */ color: oklch(51.8% 0.129 258.8);

Tailwind

colors: {
  custom: {
    50: '#7c91c9',
    500: '#3767b1',
    950: '#000000',
  },
}

SCSS

$custom: #3767b1;
$custom-light: #7c91c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3767b1",
  "rgb": {
    "r": 55,
    "g": 103,
    "b": 177
  },
  "hsl": {
    "h": 216.393,
    "s": 52.586,
    "l": 45.49
  },
  "oklch": {
    "l": 0.51784,
    "c": 0.12857,
    "h": 258.8
  },
  "luminance": 0.13687
}

Semantic roles & 50–950 ramp

primary

#3767B1

secondary

#C4A980

accent

#A34CDC

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3767B1

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

Preview Lab → · Contrast checker → · Palette generator →