#3759C4#3759C4

#3759C4 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.1% C 0.172 H 266.7°. Best body text is #FFFFFF at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#3759C4
RGB	rgb(55, 89, 196)
HSL	hsl(226, 56%, 49%)
HSV	hsv(226, 72%, 77%)
CMYK	cmyk(71.9%, 54.6%, 0%, 23.1%)
CIE-LAB	lab(41.12, 24.63, -59.55)
CIE-LCH	lch(41.12, 64.45, 292.47°)
OKLab	oklab(50.15% -0.0098 -0.1715)
OKLCH	oklch(50.15% 0.172 266.7)
XYZ	xyz(15.1083, 11.9409, 53.7224)
Luminance	0.1194 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3759C4 #C4A237

analogous

#37A0C4 #3759C4 #5C37C4

triadic

#3759C4 #C43759 #59C437

tetradic

#3759C4 #C437A0 #C4A237 #37C45C

square

#3759C4 #C437A0 #C4A237 #37C45C

split-complementary

#3759C4 #C45C37 #A0C437

monochromatic

#1C2E64 #2A4394 #3759C4 #657FD4 #94A7E1

Accessibility & contrast

On white

6.20

#3759C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#3759C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3759C4

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3759C4	#FFFFFF	#000000	##FFFFFF
##3759C4	1.00	6.20	3.39	6.20
#FFFFFF	6.20	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068C8

Deuteranopia (green-blind)

#005BC2

Tritanopia (blue-blind)

#007386

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3759c4;
/* rgb */ color: rgb(55, 89, 196);
/* oklch */ color: oklch(50.1% 0.172 266.7);

Tailwind

colors: {
  custom: {
    50: '#8087d7',
    500: '#3759c4',
    950: '#000000',
  },
}

SCSS

$custom: #3759c4;
$custom-light: #8087d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3759c4",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 196
  },
  "hsl": {
    "h": 225.532,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.50149,
    "c": 0.17178,
    "h": 266.7
  },
  "luminance": 0.11943
}

Semantic roles & 50–950 ramp

primary

#3759C4

secondary

#CCBC8B

accent

#BB48DF

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3759C4

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

Preview Lab → · Contrast checker → · Palette generator →