#4245CB#4245CB

#4245CB is a mid, highly saturated blue. Relative luminance 0.097; OKLCH L 47.7% C 0.202 H 274.6°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#4245CB
RGB	rgb(66, 69, 203)
HSL	hsl(239, 57%, 53%)
HSV	hsv(239, 67%, 80%)
CMYK	cmyk(67.5%, 66%, 0%, 20.4%)
CIE-LAB	lab(37.34, 41.17, -69.75)
CIE-LCH	lch(37.34, 80.99, 300.55°)
OKLab	oklab(47.68% 0.0164 -0.2014)
OKLCH	oklch(47.68% 0.202 274.6)
XYZ	xyz(15.1508, 9.7249, 57.5670)
Luminance	0.0973 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.14

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4245CB #CBC842

analogous

#428ACB #4245CB #8342CB

triadic

#4245CB #CB4245 #45CB42

tetradic

#4245CB #CB428A #CBC842 #42CB83

square

#4245CB #CB428A #CBC842 #42CB83

split-complementary

#4245CB #CB8342 #8ACB42

monochromatic

#202173 #2D2FA3 #4245CB #7274D8 #A2A3E5

Accessibility & contrast

On white

7.13

#4245CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#4245CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4245CB

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4245CB	#FFFFFF	#000000	##FFFFFF
##4245CB	1.00	7.13	2.95	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ECF

Deuteranopia (green-blind)

#0052C8

Tritanopia (blue-blind)

#006882

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #4245cb;
/* rgb */ color: rgb(66, 69, 203);
/* oklch */ color: oklch(47.7% 0.202 274.6);

Tailwind

colors: {
  custom: {
    50: '#8779dc',
    500: '#4245cb',
    950: '#000000',
  },
}

SCSS

$custom: #4245cb;
$custom-light: #8779dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4245cb",
  "rgb": {
    "r": 66,
    "g": 69,
    "b": 203
  },
  "hsl": {
    "h": 238.686,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.47683,
    "c": 0.20204,
    "h": 274.6
  },
  "luminance": 0.09726
}

Semantic roles & 50–950 ramp

primary

#4245CB

secondary

#D2D197

accent

#DD48E0

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4245CB

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

Preview Lab → · Contrast checker → · Palette generator →