#4038AC#4038AC

#4038AC is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.6% C 0.178 H 278.8°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#4038AC
RGB	rgb(64, 56, 172)
HSL	hsl(244, 51%, 45%)
HSV	hsv(244, 67%, 67%)
CMYK	cmyk(62.8%, 67.4%, 0%, 32.5%)
CIE-LAB	lab(31.57, 38.42, -60.95)
CIE-LCH	lch(31.57, 72.05, 302.22°)
OKLab	oklab(42.63% 0.0272 -0.1757)
OKLCH	oklch(42.63% 0.178 278.8)
XYZ	xyz(10.9725, 6.8960, 39.7746)
Luminance	0.0690 (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

#4038AC #A4AC38

analogous

#386AAC #4038AC #7A38AC

triadic

#4038AC #AC4038 #38AC40

tetradic

#4038AC #AC386A #A4AC38 #38AC7A

square

#4038AC #AC386A #A4AC38 #38AC7A

split-complementary

#4038AC #AC7A38 #6AAC38

monochromatic

#1E1A50 #2F297E #4038AC #6058C9 #8C87D8

Accessibility & contrast

On white

8.83

#4038AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#4038AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4038AC

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4038AC	#FFFFFF	#000000	##FFFFFF
##4038AC	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB0

Deuteranopia (green-blind)

#0046AA

Tritanopia (blue-blind)

#00566D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #4038ac;
/* rgb */ color: rgb(64, 56, 172);
/* oklch */ color: oklch(42.6% 0.178 278.8);

Tailwind

colors: {
  custom: {
    50: '#816fc6',
    500: '#4038ac',
    950: '#000000',
  },
}

SCSS

$custom: #4038ac;
$custom-light: #816fc6;
$custom-dark: #000000;

JSON

{
  "hex": "#4038ac",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 172
  },
  "hsl": {
    "h": 244.138,
    "s": 50.877,
    "l": 44.706
  },
  "oklch": {
    "l": 0.42625,
    "c": 0.17779,
    "h": 278.8
  },
  "luminance": 0.06897
}

Semantic roles & 50–950 ramp

primary

#4038AC

secondary

#BDC27E

accent

#DA4DD1

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4038AC

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

Preview Lab → · Contrast checker → · Palette generator →