#3759A2#3759A2

#3759A2 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 47.7% C 0.124 H 263.6°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#3759A2
RGB	rgb(55, 89, 162)
HSL	hsl(221, 49%, 43%)
HSV	hsv(221, 66%, 64%)
CMYK	cmyk(66%, 45.1%, 0%, 36.5%)
CIE-LAB	lab(38.84, 12.13, -43.24)
CIE-LCH	lch(38.84, 44.90, 285.67°)
OKLab	oklab(47.68% -0.0139 -0.1235)
OKLCH	oklch(47.68% 0.124 263.6)
XYZ	xyz(11.6672, 10.5645, 35.5997)
Luminance	0.1057 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3759A2 #A28037

analogous

#378EA2 #3759A2 #4B37A2

triadic

#3759A2 #A23759 #59A237

tetradic

#3759A2 #A2378E #A28037 #37A24B

square

#3759A2 #A2378E #A28037 #37A24B

split-complementary

#3759A2 #A24B37 #8EA237

monochromatic

#182747 #274074 #3759A2 #5276C4 #809AD4

Accessibility & contrast

On white

6.75

#3759A2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3759A2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3759A2

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3759A2	#FFFFFF	#000000	##FFFFFF
##3759A2	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3661A5

Deuteranopia (green-blind)

#2457A0

Tritanopia (blue-blind)

#006A75

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3759a2;
/* rgb */ color: rgb(55, 89, 162);
/* oklch */ color: oklch(47.7% 0.124 263.6);

Tailwind

colors: {
  custom: {
    50: '#7987be',
    500: '#3759a2',
    950: '#000000',
  },
}

SCSS

$custom: #3759a2;
$custom-light: #7987be;
$custom-dark: #000000;

JSON

{
  "hex": "#3759a2",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 162
  },
  "hsl": {
    "h": 220.935,
    "s": 49.309,
    "l": 42.549
  },
  "oklch": {
    "l": 0.4768,
    "c": 0.12428,
    "h": 263.6
  },
  "luminance": 0.10566
}

Semantic roles & 50–950 ramp

primary

#3759A2

secondary

#BDA778

accent

#AD4FD9

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3759A2

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

Preview Lab → · Contrast checker → · Palette generator →