#4039CE#4039CE

#4039CE is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 46.0% C 0.219 H 275.5°. Best body text is #FFFFFF at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#4039CE
RGB	rgb(64, 57, 206)
HSL	hsl(243, 60%, 52%)
HSV	hsv(243, 72%, 81%)
CMYK	cmyk(68.9%, 72.3%, 0%, 19.2%)
CIE-LAB	lab(34.95, 48.88, -75.44)
CIE-LCH	lch(34.95, 89.89, 302.94°)
OKLab	oklab(46.01% 0.0211 -0.218)
OKLCH	oklch(46.01% 0.219 275.5)
XYZ	xyz(14.7144, 8.4711, 59.2402)
Luminance	0.0847 (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

#4039CE #C7CE39

analogous

#397DCE #4039CE #8B39CE

triadic

#4039CE #CE4039 #39CE40

tetradic

#4039CE #CE397D #C7CE39 #39CE8B

square

#4039CE #CE397D #C7CE39 #39CE8B

split-complementary

#4039CE #CE8B39 #7DCE39

monochromatic

#201C71 #2E28A2 #4039CE #6F6ADA #9F9BE6

Accessibility & contrast

On white

7.79

#4039CE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#4039CE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4039CE

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4039CE	#FFFFFF	#000000	##FFFFFF
##4039CE	1.00	7.79	2.69	7.79
#FFFFFF	7.79	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059D2

Deuteranopia (green-blind)

#004BCB

Tritanopia (blue-blind)

#006380

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #4039ce;
/* rgb */ color: rgb(64, 57, 206);
/* oklch */ color: oklch(46.0% 0.219 275.5);

Tailwind

colors: {
  custom: {
    50: '#8871de',
    500: '#4039ce',
    950: '#000000',
  },
}

SCSS

$custom: #4039ce;
$custom-light: #8871de;
$custom-dark: #000000;

JSON

{
  "hex": "#4039ce",
  "rgb": {
    "r": 64,
    "g": 57,
    "b": 206
  },
  "hsl": {
    "h": 242.819,
    "s": 60.324,
    "l": 51.569
  },
  "oklch": {
    "l": 0.46008,
    "c": 0.21907,
    "h": 275.5
  },
  "luminance": 0.08472
}

Semantic roles & 50–950 ramp

primary

#4039CE

secondary

#CFD291

accent

#E344DC

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4039CE

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

Preview Lab → · Contrast checker → · Palette generator →