#4245CC#4245CC

#4245CC is a mid, highly saturated blue. Relative luminance 0.098; OKLCH L 47.8% C 0.203 H 274.6°. Best body text is #FFFFFF at 7.11:1 contrast (WCAG AA passes).

Color values

HEX	#4245CC
RGB	rgb(66, 69, 204)
HSL	hsl(239, 58%, 53%)
HSV	hsv(239, 68%, 80%)
CMYK	cmyk(67.6%, 66.2%, 0%, 20%)
CIE-LAB	lab(37.43, 41.51, -70.19)
CIE-LCH	lch(37.43, 81.54, 300.60°)
OKLab	oklab(47.77% 0.0163 -0.2027)
OKLCH	oklch(47.77% 0.203 274.6)
XYZ	xyz(15.2704, 9.7727, 58.1966)
Luminance	0.0977 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.19

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4245CC #CCC942

analogous

#428ACC #4245CC #8442CC

triadic

#4245CC #CC4245 #45CC42

tetradic

#4245CC #CC428A #CCC942 #42CC84

square

#4245CC #CC428A #CCC942 #42CC84

split-complementary

#4245CC #CC8442 #8ACC42

monochromatic

#1F2174 #2C2FA4 #4245CC #7274D9 #A2A4E6

Accessibility & contrast

On white

7.11

#4245CC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#4245CC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4245CC

7.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4245CC	#FFFFFF	#000000	##FFFFFF
##4245CC	1.00	7.11	2.95	7.11
#FFFFFF	7.11	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED0

Deuteranopia (green-blind)

#0052C9

Tritanopia (blue-blind)

#006982

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #4245cc;
/* rgb */ color: rgb(66, 69, 204);
/* oklch */ color: oklch(47.8% 0.203 274.6);

Tailwind

colors: {
  custom: {
    50: '#8879dd',
    500: '#4245cc',
    950: '#000000',
  },
}

SCSS

$custom: #4245cc;
$custom-light: #8879dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4245cc",
  "rgb": {
    "r": 66,
    "g": 69,
    "b": 204
  },
  "hsl": {
    "h": 238.696,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.47774,
    "c": 0.20331,
    "h": 274.6
  },
  "luminance": 0.09774
}

Semantic roles & 50–950 ramp

primary

#4245CC

secondary

#D3D197

accent

#DD47E1

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4245CC

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

Preview Lab → · Contrast checker → · Palette generator →