#3F61E4#3F61E4

#3F61E4 is a mid, highly saturated blue. Relative luminance 0.152; OKLCH L 54.6% C 0.202 H 267.9°. Best body text is #FFFFFF at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#3F61E4
RGB	rgb(63, 97, 228)
HSL	hsl(228, 75%, 57%)
HSV	hsv(228, 72%, 89%)
CMYK	cmyk(72.4%, 57.5%, 0%, 10.6%)
CIE-LAB	lab(45.91, 32.12, -70.08)
CIE-LCH	lch(45.91, 77.08, 294.62°)
OKLab	oklab(54.59% -0.0074 -0.2022)
OKLCH	oklch(54.59% 0.202 267.9)
XYZ	xyz(20.3233, 15.2054, 75.2476)
Luminance	0.1521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F61E4 #E4C23F

analogous

#3FB4E4 #3F61E4 #6F3FE4

triadic

#3F61E4 #E43F61 #61E43F

tetradic

#3F61E4 #E43FB4 #E4C23F #3FE46F

square

#3F61E4 #E43FB4 #E4C23F #3FE46F

split-complementary

#3F61E4 #E46F3F #B4E43F

monochromatic

#152F94 #1C40C9 #3F61E4 #758DEC #AAB9F3

Accessibility & contrast

On white

5.20

#3F61E4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.04

#3F61E4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F61E4

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F61E4	#FFFFFF	#000000	##FFFFFF
##3F61E4	1.00	5.20	4.04	5.20
#FFFFFF	5.20	1.00	21.00	1.00
#000000	4.04	21.00	1.00	21.00
##FFFFFF	5.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075E8

Deuteranopia (green-blind)

#0065E1

Tritanopia (blue-blind)

#008299

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3f61e4;
/* rgb */ color: rgb(63, 97, 228);
/* oklch */ color: oklch(54.6% 0.202 267.9);

Tailwind

colors: {
  custom: {
    50: '#898ded',
    500: '#3f61e4',
    950: '#000000',
  },
}

SCSS

$custom: #3f61e4;
$custom-light: #898ded;
$custom-dark: #000000;

JSON

{
  "hex": "#3f61e4",
  "rgb": {
    "r": 63,
    "g": 97,
    "b": 228
  },
  "hsl": {
    "h": 227.636,
    "s": 75.342,
    "l": 57.059
  },
  "oklch": {
    "l": 0.5459,
    "c": 0.20229,
    "h": 267.9
  },
  "luminance": 0.15208
}

Semantic roles & 50–950 ramp

primary

#3F61E4

secondary

#E1D39E

accent

#CB36F2

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #3F61E4

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

Preview Lab → · Contrast checker → · Palette generator →