#3F55E2#3F55E2

#3F55E2 is a mid, highly saturated blue. Relative luminance 0.130; OKLCH L 52.3% C 0.214 H 270.2°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#3F55E2
RGB	rgb(63, 85, 226)
HSL	hsl(232, 74%, 57%)
HSV	hsv(232, 72%, 89%)
CMYK	cmyk(72.1%, 62.4%, 0%, 11.4%)
CIE-LAB	lab(42.83, 38.89, -73.98)
CIE-LCH	lch(42.83, 83.58, 297.73°)
OKLab	oklab(52.25% 0.0009 -0.2137)
OKLCH	oklch(52.25% 0.214 270.2)
XYZ	xyz(19.0212, 13.0428, 73.4518)
Luminance	0.1305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F55E2 #E2CC3F

analogous

#3FA7E2 #3F55E2 #7B3FE2

triadic

#3F55E2 #E23F55 #55E23F

tetradic

#3F55E2 #E23FA7 #E2CC3F #3FE27B

square

#3F55E2 #E23FA7 #E2CC3F #3FE27B

split-complementary

#3F55E2 #E27B3F #A7E23F

monochromatic

#162691 #1E35C6 #3F55E2 #7484EA #A9B3F2

Accessibility & contrast

On white

5.82

#3F55E2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#3F55E2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F55E2

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F55E2	#FFFFFF	#000000	##FFFFFF
##3F55E2	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DE7

Deuteranopia (green-blind)

#005EDF

Tritanopia (blue-blind)

#007A94

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3f55e2;
/* rgb */ color: rgb(63, 85, 226);
/* oklch */ color: oklch(52.3% 0.214 270.2);

Tailwind

colors: {
  custom: {
    50: '#8a85ec',
    500: '#3f55e2',
    950: '#000000',
  },
}

SCSS

$custom: #3f55e2;
$custom-light: #8a85ec;
$custom-dark: #000000;

JSON

{
  "hex": "#3f55e2",
  "rgb": {
    "r": 63,
    "g": 85,
    "b": 226
  },
  "hsl": {
    "h": 231.902,
    "s": 73.756,
    "l": 56.667
  },
  "oklch": {
    "l": 0.52251,
    "c": 0.21375,
    "h": 270.2
  },
  "luminance": 0.13045
}

Semantic roles & 50–950 ramp

primary

#3F55E2

secondary

#E0D79D

accent

#D737F0

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #3F55E2

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

Preview Lab → · Contrast checker → · Palette generator →