#4033A1#4033A1

#4033A1 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.8% C 0.169 H 281.2°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#4033A1
RGB	rgb(64, 51, 161)
HSL	hsl(247, 52%, 42%)
HSV	hsv(247, 68%, 63%)
CMYK	cmyk(60.2%, 68.3%, 0%, 36.9%)
CIE-LAB	lab(29.49, 37.82, -57.74)
CIE-LCH	lch(29.49, 69.02, 303.23°)
OKLab	oklab(40.82% 0.0328 -0.1663)
OKLCH	oklch(40.82% 0.169 281.2)
XYZ	xyz(9.7292, 6.0302, 34.3626)
Luminance	0.0603 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.25

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4033A1 #94A133

analogous

#335DA1 #4033A1 #7733A1

triadic

#4033A1 #A14033 #33A140

tetradic

#4033A1 #A1335D #94A133 #33A177

square

#4033A1 #A1335D #94A133 #33A177

split-complementary

#4033A1 #A17733 #5DA133

monochromatic

#1B1644 #2E2473 #4033A1 #5A4BC6 #847AD5

Accessibility & contrast

On white

9.52

#4033A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#4033A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4033A1

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4033A1	#FFFFFF	#000000	##FFFFFF
##4033A1	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A4

Deuteranopia (green-blind)

#00419F

Tritanopia (blue-blind)

#005065

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #4033a1;
/* rgb */ color: rgb(64, 51, 161);
/* oklch */ color: oklch(40.8% 0.169 281.2);

Tailwind

colors: {
  custom: {
    50: '#806cbe',
    500: '#4033a1',
    950: '#000000',
  },
}

SCSS

$custom: #4033a1;
$custom-light: #806cbe;
$custom-dark: #000000;

JSON

{
  "hex": "#4033a1",
  "rgb": {
    "r": 64,
    "g": 51,
    "b": 161
  },
  "hsl": {
    "h": 247.091,
    "s": 51.887,
    "l": 41.569
  },
  "oklch": {
    "l": 0.40824,
    "c": 0.16949,
    "h": 281.2
  },
  "luminance": 0.06031
}

Semantic roles & 50–950 ramp

primary

#4033A1

secondary

#B4BD72

accent

#DB4CCA

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #4033A1

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

Preview Lab → · Contrast checker → · Palette generator →