#4247F0#4247F0

#4247F0 is a mid, highly saturated blue. Relative luminance 0.120; OKLCH L 51.4% C 0.245 H 272.5°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#4247F0
RGB	rgb(66, 71, 240)
HSL	hsl(238, 85%, 60%)
HSV	hsv(238, 73%, 94%)
CMYK	cmyk(72.5%, 70.4%, 0%, 5.9%)
CIE-LAB	lab(41.14, 52.19, -84.66)
CIE-LCH	lch(41.14, 99.46, 301.65°)
OKLab	oklab(51.45% 0.0107 -0.2449)
OKLCH	oklch(51.45% 0.245 272.5)
XYZ	xyz(20.2229, 11.9539, 83.6627)
Luminance	0.1196 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4247F0 #F0EB42

analogous

#429EF0 #4247F0 #9442F0

triadic

#4247F0 #F04247 #47F042

tetradic

#4247F0 #F0429E #F0EB42 #42F094

square

#4247F0 #F0429E #F0EB42 #42F094

split-complementary

#4247F0 #F09442 #9EF042

monochromatic

#0E12AA #1218E3 #4247F0 #7B7EF4 #B3B5F9

Accessibility & contrast

On white

6.19

#4247F0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#4247F0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4247F0

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4247F0	#FFFFFF	#000000	##FFFFFF
##4247F0	1.00	6.19	3.39	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069F5

Deuteranopia (green-blind)

#0059ED

Tritanopia (blue-blind)

#007797

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4247f0;
/* rgb */ color: rgb(66, 71, 240);
/* oklch */ color: oklch(51.4% 0.245 272.5);

Tailwind

colors: {
  custom: {
    50: '#8f7cf6',
    500: '#4247f0',
    950: '#000000',
  },
}

SCSS

$custom: #4247f0;
$custom-light: #8f7cf6;
$custom-dark: #000000;

JSON

{
  "hex": "#4247f0",
  "rgb": {
    "r": 66,
    "g": 71,
    "b": 240
  },
  "hsl": {
    "h": 238.276,
    "s": 85.294,
    "l": 60
  },
  "oklch": {
    "l": 0.51446,
    "c": 0.24518,
    "h": 272.5
  },
  "luminance": 0.11956
}

Semantic roles & 50–950 ramp

primary

#4247F0

secondary

#E8E6A5

accent

#F62CFC

background

#F9F7FF

surface

#F2EEFF

border

#CCC9D7

text

#0F0917

muted

#7E7B85

Preview Lab

Preview with #4247F0

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

Preview Lab → · Contrast checker → · Palette generator →