#3759C5#3759C5

#3759C5 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.2% C 0.173 H 266.8°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#3759C5
RGB	rgb(55, 89, 197)
HSL	hsl(226, 56%, 49%)
HSV	hsv(226, 72%, 77%)
CMYK	cmyk(72.1%, 54.8%, 0%, 22.7%)
CIE-LAB	lab(41.19, 25.00, -60.01)
CIE-LCH	lch(41.19, 65.01, 292.62°)
OKLab	oklab(50.23% -0.0097 -0.1729)
OKLCH	oklch(50.23% 0.173 266.8)
XYZ	xyz(15.2225, 11.9866, 54.3239)
Luminance	0.1199 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3759C5 #C5A337

analogous

#37A0C5 #3759C5 #5C37C5

triadic

#3759C5 #C53759 #59C537

tetradic

#3759C5 #C537A0 #C5A337 #37C55C

square

#3759C5 #C537A0 #C5A337 #37C55C

split-complementary

#3759C5 #C55C37 #A0C537

monochromatic

#1C2E65 #2A4395 #3759C5 #6580D4 #95A7E1

Accessibility & contrast

On white

6.18

#3759C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#3759C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3759C5

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3759C5	#FFFFFF	#000000	##FFFFFF
##3759C5	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068C9

Deuteranopia (green-blind)

#005BC3

Tritanopia (blue-blind)

#007386

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3759c5;
/* rgb */ color: rgb(55, 89, 197);
/* oklch */ color: oklch(50.2% 0.173 266.8);

Tailwind

colors: {
  custom: {
    50: '#8087d7',
    500: '#3759c5',
    950: '#000000',
  },
}

SCSS

$custom: #3759c5;
$custom-light: #8087d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3759c5",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 197
  },
  "hsl": {
    "h": 225.634,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.50227,
    "c": 0.17313,
    "h": 266.8
  },
  "luminance": 0.11988
}

Semantic roles & 50–950 ramp

primary

#3759C5

secondary

#CDBD8B

accent

#BB48E0

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3759C5

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

Preview Lab → · Contrast checker → · Palette generator →