#4039C5#4039C5

#4039C5 is a mid, highly saturated blue. Relative luminance 0.080; OKLCH L 45.1% C 0.208 H 276.3°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#4039C5
RGB	rgb(64, 57, 197)
HSL	hsl(243, 55%, 50%)
HSV	hsv(243, 71%, 77%)
CMYK	cmyk(67.5%, 71.1%, 0%, 22.7%)
CIE-LAB	lab(34.08, 46.00, -71.62)
CIE-LCH	lch(34.08, 85.12, 302.71°)
OKLab	oklab(45.13% 0.0227 -0.2069)
OKLCH	oklch(45.13% 0.208 276.3)
XYZ	xyz(13.6522, 8.0462, 53.6461)
Luminance	0.0805 (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

#4039C5 #BEC539

analogous

#3978C5 #4039C5 #8639C5

triadic

#4039C5 #C54039 #39C540

tetradic

#4039C5 #C53978 #BEC539 #39C586

square

#4039C5 #C53978 #BEC539 #39C586

split-complementary

#4039C5 #C58639 #78C539

monochromatic

#211E66 #312B96 #4039C5 #6D68D3 #9B97E1

Accessibility & contrast

On white

8.05

#4039C5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#4039C5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4039C5

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4039C5	#FFFFFF	#000000	##FFFFFF
##4039C5	1.00	8.05	2.61	8.05
#FFFFFF	8.05	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C9

Deuteranopia (green-blind)

#004AC2

Tritanopia (blue-blind)

#00607B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #4039c5;
/* rgb */ color: rgb(64, 57, 197);
/* oklch */ color: oklch(45.1% 0.208 276.3);

Tailwind

colors: {
  custom: {
    50: '#8671d8',
    500: '#4039c5',
    950: '#000000',
  },
}

SCSS

$custom: #4039c5;
$custom-light: #8671d8;
$custom-dark: #000000;

JSON

{
  "hex": "#4039c5",
  "rgb": {
    "r": 64,
    "g": 57,
    "b": 197
  },
  "hsl": {
    "h": 243,
    "s": 55.118,
    "l": 49.804
  },
  "oklch": {
    "l": 0.45129,
    "c": 0.20815,
    "h": 276.3
  },
  "luminance": 0.08047
}

Semantic roles & 50–950 ramp

primary

#4039C5

secondary

#C9CD8D

accent

#DE49D7

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4039C5

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

Preview Lab → · Contrast checker → · Palette generator →