#4038C8#4038C8

#4038C8 is a mid, highly saturated blue. Relative luminance 0.081; OKLCH L 45.3% C 0.213 H 276.1°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#4038C8
RGB	rgb(64, 56, 200)
HSL	hsl(243, 57%, 50%)
HSV	hsv(243, 72%, 78%)
CMYK	cmyk(68%, 72%, 0%, 21.6%)
CIE-LAB	lab(34.16, 47.52, -73.23)
CIE-LCH	lch(34.16, 87.30, 302.98°)
OKLab	oklab(45.28% 0.0228 -0.2116)
OKLCH	oklch(45.28% 0.213 276.1)
XYZ	xyz(13.9504, 8.0872, 55.4582)
Luminance	0.0809 (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

#4038C8 #C0C838

analogous

#3878C8 #4038C8 #8838C8

triadic

#4038C8 #C84038 #38C840

tetradic

#4038C8 #C83878 #C0C838 #38C888

square

#4038C8 #C83878 #C0C838 #38C888

split-complementary

#4038C8 #C88838 #78C838

monochromatic

#211D69 #302A99 #4038C8 #6E68D5 #9C98E3

Accessibility & contrast

On white

8.02

#4038C8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#4038C8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4038C8

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4038C8	#FFFFFF	#000000	##FFFFFF
##4038C8	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057CC

Deuteranopia (green-blind)

#004AC5

Tritanopia (blue-blind)

#00607C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #4038c8;
/* rgb */ color: rgb(64, 56, 200);
/* oklch */ color: oklch(45.3% 0.213 276.1);

Tailwind

colors: {
  custom: {
    50: '#8770da',
    500: '#4038c8',
    950: '#000000',
  },
}

SCSS

$custom: #4038c8;
$custom-light: #8770da;
$custom-dark: #000000;

JSON

{
  "hex": "#4038c8",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 200
  },
  "hsl": {
    "h": 243.333,
    "s": 56.693,
    "l": 50.196
  },
  "oklch": {
    "l": 0.45276,
    "c": 0.21283,
    "h": 276.1
  },
  "luminance": 0.08088
}

Semantic roles & 50–950 ramp

primary

#4038C8

secondary

#CBCE8E

accent

#E048D8

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4038C8

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

Preview Lab → · Contrast checker → · Palette generator →