#3743D5#3743D5

#3743D5 is a mid, highly saturated blue. Relative luminance 0.096; OKLCH L 47.7% C 0.220 H 271.2°. Best body text is #FFFFFF at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#3743D5
RGB	rgb(55, 67, 213)
HSL	hsl(235, 65%, 53%)
HSV	hsv(235, 74%, 84%)
CMYK	cmyk(74.2%, 68.5%, 0%, 16.5%)
CIE-LAB	lab(37.17, 44.52, -75.84)
CIE-LCH	lch(37.17, 87.94, 300.41°)
OKLab	oklab(47.66% 0.0045 -0.2195)
OKLCH	oklch(47.66% 0.22 271.2)
XYZ	xyz(15.5889, 9.6290, 63.9749)
Luminance	0.0963 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3743D5 #D5C937

analogous

#3792D5 #3743D5 #7A37D5

triadic

#3743D5 #D53743 #43D537

tetradic

#3743D5 #D53792 #D5C937 #37D57A

square

#3743D5 #D53792 #D5C937 #37D57A

split-complementary

#3743D5 #D57A37 #92D537

monochromatic

#192078 #242EAB #3743D5 #6A73E0 #9CA2EA

Accessibility & contrast

On white

7.18

#3743D5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#3743D5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3743D5

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3743D5	#FFFFFF	#000000	##FFFFFF
##3743D5	1.00	7.18	2.93	7.18
#FFFFFF	7.18	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FD9

Deuteranopia (green-blind)

#0050D2

Tritanopia (blue-blind)

#006B87

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3743d5;
/* rgb */ color: rgb(55, 67, 213);
/* oklch */ color: oklch(47.7% 0.220 271.2);

Tailwind

colors: {
  custom: {
    50: '#8578e3',
    500: '#3743d5',
    950: '#000000',
  },
}

SCSS

$custom: #3743d5;
$custom-light: #8578e3;
$custom-dark: #000000;

JSON

{
  "hex": "#3743d5",
  "rgb": {
    "r": 55,
    "g": 67,
    "b": 213
  },
  "hsl": {
    "h": 235.443,
    "s": 65.289,
    "l": 52.549
  },
  "oklch": {
    "l": 0.47662,
    "c": 0.21951,
    "h": 271.2
  },
  "luminance": 0.09631
}

Semantic roles & 50–950 ramp

primary

#3743D5

secondary

#D6D192

accent

#DB40E8

background

#F9F7FE

surface

#F1EDFC

border

#CBC8D5

text

#0D0916

muted

#7E7B84

Preview Lab

Preview with #3743D5

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

Preview Lab → · Contrast checker → · Palette generator →