#4038AB#4038AB

#4038AB is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.5% C 0.176 H 278.9°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#4038AB
RGB	rgb(64, 56, 171)
HSL	hsl(244, 51%, 45%)
HSV	hsv(244, 67%, 67%)
CMYK	cmyk(62.6%, 67.3%, 0%, 32.9%)
CIE-LAB	lab(31.48, 38.09, -60.50)
CIE-LCH	lch(31.48, 71.49, 302.19°)
OKLab	oklab(42.53% 0.0273 -0.1744)
OKLCH	oklch(42.53% 0.176 278.9)
XYZ	xyz(10.8769, 6.8578, 39.2707)
Luminance	0.0686 (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

#4038AB #A3AB38

analogous

#386AAB #4038AB #7A38AB

triadic

#4038AB #AB4038 #38AB40

tetradic

#4038AB #AB386A #A3AB38 #38AB7A

square

#4038AB #AB386A #A3AB38 #38AB7A

split-complementary

#4038AB #AB7A38 #6AAB38

monochromatic

#1D1A4F #2F297D #4038AB #6058C8 #8C86D7

Accessibility & contrast

On white

8.85

#4038AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#4038AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4038AB

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4038AB	#FFFFFF	#000000	##FFFFFF
##4038AB	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAF

Deuteranopia (green-blind)

#0045A9

Tritanopia (blue-blind)

#00566C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #4038ab;
/* rgb */ color: rgb(64, 56, 171);
/* oklch */ color: oklch(42.5% 0.176 278.9);

Tailwind

colors: {
  custom: {
    50: '#816fc5',
    500: '#4038ab',
    950: '#000000',
  },
}

SCSS

$custom: #4038ab;
$custom-light: #816fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#4038ab",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 171
  },
  "hsl": {
    "h": 244.174,
    "s": 50.661,
    "l": 44.51
  },
  "oklch": {
    "l": 0.42534,
    "c": 0.17649,
    "h": 278.9
  },
  "luminance": 0.06859
}

Semantic roles & 50–950 ramp

primary

#4038AB

secondary

#BDC17D

accent

#DA4ED0

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4038AB

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

Preview Lab → · Contrast checker → · Palette generator →