#3742C3#3742C3

#3742C3 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.8% C 0.198 H 272.0°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#3742C3
RGB	rgb(55, 66, 195)
HSL	hsl(235, 56%, 49%)
HSV	hsv(235, 72%, 76%)
CMYK	cmyk(71.8%, 66.2%, 0%, 23.5%)
CIE-LAB	lab(35.30, 38.94, -68.47)
CIE-LCH	lch(35.30, 78.77, 299.63°)
OKLab	oklab(45.8% 0.0068 -0.1979)
OKLCH	oklch(45.8% 0.198 272)
XYZ	xyz(13.3708, 8.6474, 52.5836)
Luminance	0.0865 (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

#3742C3 #C3B837

analogous

#3788C3 #3742C3 #7237C3

triadic

#3742C3 #C33742 #42C337

tetradic

#3742C3 #C33788 #C3B837 #37C372

square

#3742C3 #C33788 #C3B837 #37C372

split-complementary

#3742C3 #C37237 #88C337

monochromatic

#1C2264 #2A3293 #3742C3 #646DD3 #949AE1

Accessibility & contrast

On white

7.69

#3742C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#3742C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3742C3

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3742C3	#FFFFFF	#000000	##FFFFFF
##3742C3	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC7

Deuteranopia (green-blind)

#004CC1

Tritanopia (blue-blind)

#00647D

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3742c3;
/* rgb */ color: rgb(55, 66, 195);
/* oklch */ color: oklch(45.8% 0.198 272.0);

Tailwind

colors: {
  custom: {
    50: '#8176d6',
    500: '#3742c3',
    950: '#000000',
  },
}

SCSS

$custom: #3742c3;
$custom-light: #8176d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3742c3",
  "rgb": {
    "r": 55,
    "g": 66,
    "b": 195
  },
  "hsl": {
    "h": 235.286,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.45803,
    "c": 0.19804,
    "h": 272
  },
  "luminance": 0.08649
}

Semantic roles & 50–950 ramp

primary

#3742C3

secondary

#CCC78A

accent

#D349DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3742C3

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

Preview Lab → · Contrast checker → · Palette generator →