#3735B3#3735B3

#3735B3 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 42.2% C 0.192 H 275.0°. Best body text is #FFFFFF at 9.04:1 contrast (WCAG AA passes).

Color values

HEX	#3735B3
RGB	rgb(55, 53, 179)
HSL	hsl(241, 54%, 45%)
HSV	hsv(241, 70%, 70%)
CMYK	cmyk(69.3%, 70.4%, 0%, 29.8%)
CIE-LAB	lab(30.91, 41.35, -66.24)
CIE-LCH	lch(30.91, 78.09, 301.97°)
OKLab	oklab(42.18% 0.0169 -0.1914)
OKLCH	oklch(42.18% 0.192 275)
XYZ	xyz(10.9826, 6.6121, 43.3366)
Luminance	0.0661 (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

#3735B3 #B1B335

analogous

#3572B3 #3735B3 #7635B3

triadic

#3735B3 #B33735 #35B337

tetradic

#3735B3 #B33572 #B1B335 #35B376

square

#3735B3 #B33572 #B1B335 #35B376

split-complementary

#3735B3 #B37635 #72B335

monochromatic

#1A1955 #282784 #3735B3 #5A58CD #8887DB

Accessibility & contrast

On white

9.04

#3735B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#3735B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3735B3

9.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3735B3	#FFFFFF	#000000	##FFFFFF
##3735B3	1.00	9.04	2.32	9.04
#FFFFFF	9.04	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB7

Deuteranopia (green-blind)

#0043B1

Tritanopia (blue-blind)

#005870

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3735b3;
/* rgb */ color: rgb(55, 53, 179);
/* oklch */ color: oklch(42.2% 0.192 275.0);

Tailwind

colors: {
  custom: {
    50: '#7f6dcb',
    500: '#3735b3',
    950: '#000000',
  },
}

SCSS

$custom: #3735b3;
$custom-light: #7f6dcb;
$custom-dark: #000000;

JSON

{
  "hex": "#3735b3",
  "rgb": {
    "r": 55,
    "g": 53,
    "b": 179
  },
  "hsl": {
    "h": 240.952,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.42178,
    "c": 0.19216,
    "h": 275
  },
  "luminance": 0.06613
}

Semantic roles & 50–950 ramp

primary

#3735B3

secondary

#C4C57F

accent

#DE4ADB

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3735B3

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

Preview Lab → · Contrast checker → · Palette generator →