#3741C3#3741C3

#3741C3 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.6% C 0.199 H 272.1°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#3741C3
RGB	rgb(55, 65, 195)
HSL	hsl(236, 56%, 49%)
HSV	hsv(236, 72%, 76%)
CMYK	cmyk(71.8%, 66.7%, 0%, 23.5%)
CIE-LAB	lab(35.07, 39.55, -68.85)
CIE-LCH	lch(35.07, 79.40, 299.88°)
OKLab	oklab(45.64% 0.0074 -0.199)
OKLCH	oklch(45.64% 0.199 272.1)
XYZ	xyz(13.3128, 8.5316, 52.5643)
Luminance	0.0853 (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

#3741C3 #C3B937

analogous

#3787C3 #3741C3 #7337C3

triadic

#3741C3 #C33741 #41C337

tetradic

#3741C3 #C33787 #C3B937 #37C373

square

#3741C3 #C33787 #C3B937 #37C373

split-complementary

#3741C3 #C37337 #87C337

monochromatic

#1C2164 #2A3193 #3741C3 #646CD3 #9499E1

Accessibility & contrast

On white

7.76

#3741C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#3741C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3741C3

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3741C3	#FFFFFF	#000000	##FFFFFF
##3741C3	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C7

Deuteranopia (green-blind)

#004CC1

Tritanopia (blue-blind)

#00647C

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3741c3;
/* rgb */ color: rgb(55, 65, 195);
/* oklch */ color: oklch(45.6% 0.199 272.1);

Tailwind

colors: {
  custom: {
    50: '#8276d6',
    500: '#3741c3',
    950: '#000000',
  },
}

SCSS

$custom: #3741c3;
$custom-light: #8276d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3741c3",
  "rgb": {
    "r": 55,
    "g": 65,
    "b": 195
  },
  "hsl": {
    "h": 235.714,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.45636,
    "c": 0.19917,
    "h": 272.1
  },
  "luminance": 0.08533
}

Semantic roles & 50–950 ramp

primary

#3741C3

secondary

#CCC78A

accent

#D549DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3741C3

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

Preview Lab → · Contrast checker → · Palette generator →