#3756BC#3756BC

#3756BC is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.9% C 0.165 H 267.3°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#3756BC
RGB	rgb(55, 86, 188)
HSL	hsl(226, 55%, 48%)
HSV	hsv(226, 71%, 74%)
CMYK	cmyk(70.7%, 54.3%, 0%, 26.3%)
CIE-LAB	lab(39.74, 23.64, -57.13)
CIE-LCH	lch(39.74, 61.82, 292.48°)
OKLab	oklab(48.93% -0.0079 -0.1644)
OKLCH	oklch(48.93% 0.165 267.3)
XYZ	xyz(13.9773, 11.0972, 48.9726)
Luminance	0.1110 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3756BC #BC9D37

analogous

#3799BC #3756BC #5A37BC

triadic

#3756BC #BC3756 #56BC37

tetradic

#3756BC #BC3799 #BC9D37 #37BC5A

square

#3756BC #BC3799 #BC9D37 #37BC5A

split-complementary

#3756BC #BC5A37 #99BC37

monochromatic

#1B2B5D #29408D #3756BC #607AD0 #8FA2DE

Accessibility & contrast

On white

6.52

#3756BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#3756BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3756BC

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3756BC	#FFFFFF	#000000	##FFFFFF
##3756BC	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0264C0

Deuteranopia (green-blind)

#0058BA

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3756bc;
/* rgb */ color: rgb(55, 86, 188);
/* oklch */ color: oklch(48.9% 0.165 267.3);

Tailwind

colors: {
  custom: {
    50: '#7f85d1',
    500: '#3756bc',
    950: '#000000',
  },
}

SCSS

$custom: #3756bc;
$custom-light: #7f85d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3756bc",
  "rgb": {
    "r": 55,
    "g": 86,
    "b": 188
  },
  "hsl": {
    "h": 226.015,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.48927,
    "c": 0.1646,
    "h": 267.3
  },
  "luminance": 0.11099
}

Semantic roles & 50–950 ramp

primary

#3756BC

secondary

#C9B986

accent

#BB4ADE

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3756BC

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

Preview Lab → · Contrast checker → · Palette generator →