#4038CF#4038CF

#4038CF is a mid, highly saturated blue. Relative luminance 0.084; OKLCH L 46.0% C 0.221 H 275.6°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#4038CF
RGB	rgb(64, 56, 207)
HSL	hsl(243, 61%, 52%)
HSV	hsv(243, 73%, 81%)
CMYK	cmyk(69.1%, 72.9%, 0%, 18.8%)
CIE-LAB	lab(34.85, 49.75, -76.18)
CIE-LCH	lch(34.85, 90.99, 303.15°)
OKLab	oklab(45.97% 0.0215 -0.2202)
OKLCH	oklch(45.97% 0.221 275.6)
XYZ	xyz(14.7873, 8.4220, 59.8657)
Luminance	0.0842 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.52

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4038CF #C7CF38

analogous

#387CCF #4038CF #8C38CF

triadic

#4038CF #CF4038 #38CF40

tetradic

#4038CF #CF387C #C7CF38 #38CF8C

square

#4038CF #CF387C #C7CF38 #38CF8C

split-complementary

#4038CF #CF8C38 #7CCF38

monochromatic

#201B71 #2E27A3 #4038CF #6F69DB #9F9BE7

Accessibility & contrast

On white

7.82

#4038CF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#4038CF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4038CF

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4038CF	#FFFFFF	#000000	##FFFFFF
##4038CF	1.00	7.82	2.68	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059D3

Deuteranopia (green-blind)

#004BCC

Tritanopia (blue-blind)

#006380

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #4038cf;
/* rgb */ color: rgb(64, 56, 207);
/* oklch */ color: oklch(46.0% 0.221 275.6);

Tailwind

colors: {
  custom: {
    50: '#8971df',
    500: '#4038cf',
    950: '#000000',
  },
}

SCSS

$custom: #4038cf;
$custom-light: #8971df;
$custom-dark: #000000;

JSON

{
  "hex": "#4038cf",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 207
  },
  "hsl": {
    "h": 243.179,
    "s": 61.134,
    "l": 51.569
  },
  "oklch": {
    "l": 0.45967,
    "c": 0.22126,
    "h": 275.6
  },
  "luminance": 0.08423
}

Semantic roles & 50–950 ramp

primary

#4038CF

secondary

#CFD390

accent

#E444DC

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4038CF

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

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