#4039AE#4039AE

#4039AE is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.0% C 0.179 H 278.4°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#4039AE
RGB	rgb(64, 57, 174)
HSL	hsl(244, 51%, 45%)
HSV	hsv(244, 67%, 68%)
CMYK	cmyk(63.2%, 67.2%, 0%, 31.8%)
CIE-LAB	lab(31.97, 38.48, -61.50)
CIE-LCH	lch(31.97, 72.54, 302.03°)
OKLab	oklab(42.97% 0.0261 -0.1773)
OKLCH	oklch(42.97% 0.179 278.4)
XYZ	xyz(11.2150, 7.0714, 40.8101)
Luminance	0.0707 (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

#4039AE #A7AE39

analogous

#396CAE #4039AE #7B39AE

triadic

#4039AE #AE4039 #39AE40

tetradic

#4039AE #AE396C #A7AE39 #39AE7B

square

#4039AE #AE396C #A7AE39 #39AE7B

split-complementary

#4039AE #AE7B39 #6CAE39

monochromatic

#1E1B52 #2F2A80 #4039AE #625BC9 #8E89D8

Accessibility & contrast

On white

8.70

#4039AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#4039AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4039AE

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4039AE	#FFFFFF	#000000	##FFFFFF
##4039AE	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B2

Deuteranopia (green-blind)

#0046AC

Tritanopia (blue-blind)

#00586E

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4039ae;
/* rgb */ color: rgb(64, 57, 174);
/* oklch */ color: oklch(43.0% 0.179 278.4);

Tailwind

colors: {
  custom: {
    50: '#8270c7',
    500: '#4039ae',
    950: '#000000',
  },
}

SCSS

$custom: #4039ae;
$custom-light: #8270c7;
$custom-dark: #000000;

JSON

{
  "hex": "#4039ae",
  "rgb": {
    "r": 64,
    "g": 57,
    "b": 174
  },
  "hsl": {
    "h": 243.59,
    "s": 50.649,
    "l": 45.294
  },
  "oklch": {
    "l": 0.42969,
    "c": 0.17919,
    "h": 278.4
  },
  "luminance": 0.07072
}

Semantic roles & 50–950 ramp

primary

#4039AE

secondary

#BFC380

accent

#DA4ED2

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4039AE

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

Preview Lab → · Contrast checker → · Palette generator →