#3759AA#3759AA

#3759AA is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.2% C 0.136 H 264.7°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#3759AA
RGB	rgb(55, 89, 170)
HSL	hsl(222, 51%, 44%)
HSV	hsv(222, 68%, 67%)
CMYK	cmyk(67.6%, 47.6%, 0%, 33.3%)
CIE-LAB	lab(39.34, 15.06, -47.18)
CIE-LCH	lch(39.34, 49.53, 287.70°)
OKLab	oklab(48.23% -0.0125 -0.1351)
OKLCH	oklch(48.23% 0.136 264.7)
XYZ	xyz(12.4011, 10.8581, 39.4647)
Luminance	0.1086 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3759AA #AA8837

analogous

#3793AA #3759AA #4F37AA

triadic

#3759AA #AA3759 #59AA37

tetradic

#3759AA #AA3793 #AA8837 #37AA4F

square

#3759AA #AA3793 #AA8837 #37AA4F

split-complementary

#3759AA #AA4F37 #93AA37

monochromatic

#19294E #28417C #3759AA #5678C8 #849DD7

Accessibility & contrast

On white

6.62

#3759AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#3759AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3759AA

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3759AA	#FFFFFF	#000000	##FFFFFF
##3759AA	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F62AD

Deuteranopia (green-blind)

#1758A8

Tritanopia (blue-blind)

#006C79

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3759aa;
/* rgb */ color: rgb(55, 89, 170);
/* oklch */ color: oklch(48.2% 0.136 264.7);

Tailwind

colors: {
  custom: {
    50: '#7b87c4',
    500: '#3759aa',
    950: '#000000',
  },
}

SCSS

$custom: #3759aa;
$custom-light: #7b87c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3759aa",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 170
  },
  "hsl": {
    "h": 222.261,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.48229,
    "c": 0.13569,
    "h": 264.7
  },
  "luminance": 0.10859
}

Semantic roles & 50–950 ramp

primary

#3759AA

secondary

#C1AD7C

accent

#B14DDB

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3759AA

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

Preview Lab → · Contrast checker → · Palette generator →