#4033A4#4033A4

#4033A4 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 41.1% C 0.173 H 280.8°. Best body text is #FFFFFF at 9.43:1 contrast (WCAG AA passes).

Color values

HEX	#4033A4
RGB	rgb(64, 51, 164)
HSL	hsl(247, 53%, 42%)
HSV	hsv(247, 69%, 64%)
CMYK	cmyk(61%, 68.9%, 0%, 35.7%)
CIE-LAB	lab(29.76, 38.79, -59.11)
CIE-LCH	lch(29.76, 70.71, 303.27°)
OKLab	oklab(41.1% 0.0324 -0.1703)
OKLCH	oklch(41.1% 0.173 280.8)
XYZ	xyz(9.9969, 6.1373, 35.7726)
Luminance	0.0614 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.88

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4033A4 #97A433

analogous

#335EA4 #4033A4 #7933A4

triadic

#4033A4 #A44033 #33A440

tetradic

#4033A4 #A4335E #97A433 #33A479

square

#4033A4 #A4335E #97A433 #33A479

split-complementary

#4033A4 #A47933 #5EA433

monochromatic

#1C1647 #2E2475 #4033A4 #5B4DC8 #867BD6

Accessibility & contrast

On white

9.43

#4033A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#4033A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4033A4

9.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4033A4	#FFFFFF	#000000	##FFFFFF
##4033A4	1.00	9.43	2.23	9.43
#FFFFFF	9.43	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA7

Deuteranopia (green-blind)

#0042A2

Tritanopia (blue-blind)

#005167

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #4033a4;
/* rgb */ color: rgb(64, 51, 164);
/* oklch */ color: oklch(41.1% 0.173 280.8);

Tailwind

colors: {
  custom: {
    50: '#806cc0',
    500: '#4033a4',
    950: '#000000',
  },
}

SCSS

$custom: #4033a4;
$custom-light: #806cc0;
$custom-dark: #000000;

JSON

{
  "hex": "#4033a4",
  "rgb": {
    "r": 64,
    "g": 51,
    "b": 164
  },
  "hsl": {
    "h": 246.903,
    "s": 52.558,
    "l": 42.157
  },
  "oklch": {
    "l": 0.41099,
    "c": 0.17336,
    "h": 280.8
  },
  "luminance": 0.06138
}

Semantic roles & 50–950 ramp

primary

#4033A4

secondary

#B6BF74

accent

#DC4CCB

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #4033A4

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

Preview Lab → · Contrast checker → · Palette generator →