#4245BC#4245BC

#4245BC is a mid, vivid blue. Relative luminance 0.090; OKLCH L 46.4% C 0.183 H 275.5°. Best body text is #FFFFFF at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#4245BC
RGB	rgb(66, 69, 188)
HSL	hsl(239, 48%, 50%)
HSV	hsv(239, 65%, 74%)
CMYK	cmyk(64.9%, 63.3%, 0%, 26.3%)
CIE-LAB	lab(36.07, 36.11, -63.08)
CIE-LCH	lch(36.07, 72.68, 299.79°)
OKLab	oklab(46.36% 0.0176 -0.1818)
OKLCH	oklch(46.36% 0.183 275.5)
XYZ	xyz(13.4490, 9.0442, 48.6042)
Luminance	0.0905 (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

#4245BC #BCB942

analogous

#4282BC #4245BC #7C42BC

triadic

#4245BC #BC4245 #45BC42

tetradic

#4245BC #BC4282 #BCB942 #42BC7C

square

#4245BC #BC4282 #BCB942 #42BC7C

split-complementary

#4245BC #BC7C42 #82BC42

monochromatic

#222461 #32348F #4245BC #6F71CC #9C9EDC

Accessibility & contrast

On white

7.48

#4245BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#4245BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4245BC

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4245BC	#FFFFFF	#000000	##FFFFFF
##4245BC	1.00	7.48	2.81	7.48
#FFFFFF	7.48	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC0

Deuteranopia (green-blind)

#004FBA

Tritanopia (blue-blind)

#00637A

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #4245bc;
/* rgb */ color: rgb(66, 69, 188);
/* oklch */ color: oklch(46.4% 0.183 275.5);

Tailwind

colors: {
  custom: {
    50: '#8479d1',
    500: '#4245bc',
    950: '#000000',
  },
}

SCSS

$custom: #4245bc;
$custom-light: #8479d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4245bc",
  "rgb": {
    "r": 66,
    "g": 69,
    "b": 188
  },
  "hsl": {
    "h": 238.525,
    "s": 48.031,
    "l": 49.804
  },
  "oklch": {
    "l": 0.4636,
    "c": 0.18267,
    "h": 275.5
  },
  "luminance": 0.09045
}

Semantic roles & 50–950 ramp

primary

#4245BC

secondary

#C9C791

accent

#D450D8

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #4245BC

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

Preview Lab → · Contrast checker → · Palette generator →