#376BBB#376BBB

#376BBB is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.3% C 0.138 H 258.8°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#376BBB
RGB	rgb(55, 107, 187)
HSL	hsl(216, 55%, 47%)
HSV	hsv(216, 71%, 73%)
CMYK	cmyk(70.6%, 42.8%, 0%, 26.7%)
CIE-LAB	lab(45.52, 9.77, -47.26)
CIE-LCH	lch(45.52, 48.25, 281.68°)
OKLab	oklab(53.32% -0.0267 -0.135)
OKLCH	oklch(53.32% 0.138 258.8)
XYZ	xyz(15.7996, 14.9138, 49.0501)
Luminance	0.1492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#376BBB #BB8737

analogous

#37ADBB #376BBB #4537BB

triadic

#376BBB #BB376B #6BBB37

tetradic

#376BBB #BB37AD #BB8737 #37BB45

square

#376BBB #BB37AD #BB8737 #37BB45

split-complementary

#376BBB #BB4537 #ADBB37

monochromatic

#1B355C #29508C #376BBB #5F8CD0 #8EAEDE

Accessibility & contrast

On white

5.27

#376BBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#376BBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #376BBB

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##376BBB	#FFFFFF	#000000	##FFFFFF
##376BBB	1.00	5.27	3.98	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4572BE

Deuteranopia (green-blind)

#2E66B9

Tritanopia (blue-blind)

#007E8A

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #376bbb;
/* rgb */ color: rgb(55, 107, 187);
/* oklch */ color: oklch(53.3% 0.138 258.8);

Tailwind

colors: {
  custom: {
    50: '#7d94d0',
    500: '#376bbb',
    950: '#000000',
  },
}

SCSS

$custom: #376bbb;
$custom-light: #7d94d0;
$custom-dark: #000000;

JSON

{
  "hex": "#376bbb",
  "rgb": {
    "r": 55,
    "g": 107,
    "b": 187
  },
  "hsl": {
    "h": 216.364,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53319,
    "c": 0.13764,
    "h": 258.8
  },
  "luminance": 0.14915
}

Semantic roles & 50–950 ramp

primary

#376BBB

secondary

#C9AE85

accent

#A44ADE

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #376BBB

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

Preview Lab → · Contrast checker → · Palette generator →