#4033C9#4033C9

#4033C9 is a dark, highly saturated blue. Relative luminance 0.077; OKLCH L 44.7% C 0.219 H 276.7°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#4033C9
RGB	rgb(64, 51, 201)
HSL	hsl(245, 60%, 49%)
HSV	hsv(245, 75%, 79%)
CMYK	cmyk(68.2%, 74.6%, 0%, 21.2%)
CIE-LAB	lab(33.29, 50.56, -75.25)
CIE-LCH	lch(33.29, 90.66, 303.90°)
OKLab	oklab(44.69% 0.0254 -0.2175)
OKLCH	oklch(44.69% 0.219 276.7)
XYZ	xyz(13.8374, 7.6734, 55.9989)
Luminance	0.0767 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.94

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4033C9 #BCC933

analogous

#3371C9 #4033C9 #8B33C9

triadic

#4033C9 #C94033 #33C940

tetradic

#4033C9 #C93371 #BCC933 #33C98B

square

#4033C9 #C93371 #BCC933 #33C98B

split-complementary

#4033C9 #C98B33 #71C933

monochromatic

#211A67 #302798 #4033C9 #6C62D7 #9A93E4

Accessibility & contrast

On white

8.28

#4033C9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#4033C9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4033C9

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4033C9	#FFFFFF	#000000	##FFFFFF
##4033C9	1.00	8.28	2.53	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055CD

Deuteranopia (green-blind)

#0048C6

Tritanopia (blue-blind)

#005E7C

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #4033c9;
/* rgb */ color: rgb(64, 51, 201);
/* oklch */ color: oklch(44.7% 0.219 276.7);

Tailwind

colors: {
  custom: {
    50: '#886ddb',
    500: '#4033c9',
    950: '#000000',
  },
}

SCSS

$custom: #4033c9;
$custom-light: #886ddb;
$custom-dark: #000000;

JSON

{
  "hex": "#4033c9",
  "rgb": {
    "r": 64,
    "g": 51,
    "b": 201
  },
  "hsl": {
    "h": 245.2,
    "s": 59.524,
    "l": 49.412
  },
  "oklch": {
    "l": 0.44689,
    "c": 0.21895,
    "h": 276.7
  },
  "luminance": 0.07675
}

Semantic roles & 50–950 ramp

primary

#4033C9

secondary

#C9CF89

accent

#E345D5

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #4033C9

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

Preview Lab → · Contrast checker → · Palette generator →