#4039C6#4039C6

#4039C6 is a mid, highly saturated blue. Relative luminance 0.081; OKLCH L 45.2% C 0.209 H 276.2°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#4039C6
RGB	rgb(64, 57, 198)
HSL	hsl(243, 55%, 50%)
HSV	hsv(243, 71%, 78%)
CMYK	cmyk(67.7%, 71.2%, 0%, 22.4%)
CIE-LAB	lab(34.17, 46.32, -72.05)
CIE-LCH	lch(34.17, 85.65, 302.74°)
OKLab	oklab(45.23% 0.0225 -0.2082)
OKLCH	oklch(45.23% 0.209 276.2)
XYZ	xyz(13.7672, 8.0922, 54.2516)
Luminance	0.0809 (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

#4039C6 #BFC639

analogous

#3978C6 #4039C6 #8739C6

triadic

#4039C6 #C64039 #39C640

tetradic

#4039C6 #C63978 #BFC639 #39C687

square

#4039C6 #C63978 #BFC639 #39C687

split-complementary

#4039C6 #C68739 #78C639

monochromatic

#211E67 #312B96 #4039C6 #6E69D4 #9C98E1

Accessibility & contrast

On white

8.02

#4039C6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#4039C6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4039C6

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4039C6	#FFFFFF	#000000	##FFFFFF
##4039C6	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056CA

Deuteranopia (green-blind)

#004AC3

Tritanopia (blue-blind)

#00607C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #4039c6;
/* rgb */ color: rgb(64, 57, 198);
/* oklch */ color: oklch(45.2% 0.209 276.2);

Tailwind

colors: {
  custom: {
    50: '#8771d9',
    500: '#4039c6',
    950: '#000000',
  },
}

SCSS

$custom: #4039c6;
$custom-light: #8771d9;
$custom-dark: #000000;

JSON

{
  "hex": "#4039c6",
  "rgb": {
    "r": 64,
    "g": 57,
    "b": 198
  },
  "hsl": {
    "h": 242.979,
    "s": 55.294,
    "l": 50
  },
  "oklch": {
    "l": 0.45226,
    "c": 0.20938,
    "h": 276.2
  },
  "luminance": 0.08093
}

Semantic roles & 50–950 ramp

primary

#4039C6

secondary

#CACD8E

accent

#DF49D7

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4039C6

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

Preview Lab → · Contrast checker → · Palette generator →