#3756CD#3756CD

#3756CD is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.3% C 0.187 H 267.8°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#3756CD
RGB	rgb(55, 86, 205)
HSL	hsl(228, 60%, 51%)
HSV	hsv(228, 73%, 80%)
CMYK	cmyk(73.2%, 58%, 0%, 19.6%)
CIE-LAB	lab(41.02, 29.86, -64.93)
CIE-LCH	lch(41.02, 71.47, 294.69°)
OKLab	oklab(50.28% -0.0071 -0.1874)
OKLCH	oklch(50.28% 0.187 267.8)
XYZ	xyz(15.9190, 11.8739, 59.1987)
Luminance	0.1188 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3756CD #CDAE37

analogous

#37A1CD #3756CD #6337CD

triadic

#3756CD #CD3756 #56CD37

tetradic

#3756CD #CD37A1 #CDAE37 #37CD63

square

#3756CD #CD37A1 #CDAE37 #37CD63

split-complementary

#3756CD #CD6337 #A1CD37

monochromatic

#1C2D6E #28409F #3756CD #687FD9 #99A9E5

Accessibility & contrast

On white

6.22

#3756CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#3756CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3756CD

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3756CD	#FFFFFF	#000000	##FFFFFF
##3756CD	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D1

Deuteranopia (green-blind)

#005ACB

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3756cd;
/* rgb */ color: rgb(55, 86, 205);
/* oklch */ color: oklch(50.3% 0.187 267.8);

Tailwind

colors: {
  custom: {
    50: '#8285dd',
    500: '#3756cd',
    950: '#000000',
  },
}

SCSS

$custom: #3756cd;
$custom-light: #8285dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3756cd",
  "rgb": {
    "r": 55,
    "g": 86,
    "b": 205
  },
  "hsl": {
    "h": 227.6,
    "s": 60,
    "l": 50.98
  },
  "oklch": {
    "l": 0.50281,
    "c": 0.18749,
    "h": 267.8
  },
  "luminance": 0.11876
}

Semantic roles & 50–950 ramp

primary

#3756CD

secondary

#D1C38F

accent

#C245E3

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3756CD

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

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