#3759CD#3759CD

#3759CD is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.9% C 0.184 H 267.1°. Best body text is #FFFFFF at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#3759CD
RGB	rgb(55, 89, 205)
HSL	hsl(226, 60%, 51%)
HSV	hsv(226, 73%, 80%)
CMYK	cmyk(73.2%, 56.6%, 0%, 19.6%)
CIE-LAB	lab(41.79, 27.93, -63.68)
CIE-LCH	lch(41.79, 69.53, 293.68°)
OKLab	oklab(50.86% -0.0093 -0.1836)
OKLCH	oklch(50.86% 0.184 267.1)
XYZ	xyz(16.1635, 12.3630, 59.2802)
Luminance	0.1236 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3759CD #CDAB37

analogous

#37A4CD #3759CD #6037CD

triadic

#3759CD #CD3759 #59CD37

tetradic

#3759CD #CD37A4 #CDAB37 #37CD60

square

#3759CD #CD37A4 #CDAB37 #37CD60

split-complementary

#3759CD #CD6037 #A4CD37

monochromatic

#1C2E6E #28439F #3759CD #6882D9 #99AAE5

Accessibility & contrast

On white

6.05

#3759CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#3759CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3759CD

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3759CD	#FFFFFF	#000000	##FFFFFF
##3759CD	1.00	6.05	3.47	6.05
#FFFFFF	6.05	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD1

Deuteranopia (green-blind)

#005CCB

Tritanopia (blue-blind)

#00768A

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3759cd;
/* rgb */ color: rgb(55, 89, 205);
/* oklch */ color: oklch(50.9% 0.184 267.1);

Tailwind

colors: {
  custom: {
    50: '#8287dd',
    500: '#3759cd',
    950: '#000000',
  },
}

SCSS

$custom: #3759cd;
$custom-light: #8287dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3759cd",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 205
  },
  "hsl": {
    "h": 226.4,
    "s": 60,
    "l": 50.98
  },
  "oklch": {
    "l": 0.50859,
    "c": 0.18386,
    "h": 267.1
  },
  "luminance": 0.12365
}

Semantic roles & 50–950 ramp

primary

#3759CD

secondary

#D1C28F

accent

#BF45E3

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3759CD

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

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