#4033B9#4033B9

#4033B9 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 43.1% C 0.200 H 278.3°. Best body text is #FFFFFF at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#4033B9
RGB	rgb(64, 51, 185)
HSL	hsl(246, 57%, 46%)
HSV	hsv(246, 72%, 73%)
CMYK	cmyk(65.4%, 72.4%, 0%, 27.5%)
CIE-LAB	lab(31.71, 45.53, -68.45)
CIE-LCH	lch(31.71, 82.21, 303.63°)
OKLab	oklab(43.1% 0.0287 -0.1976)
OKLCH	oklch(43.1% 0.2 278.3)
XYZ	xyz(12.0523, 6.9594, 46.5977)
Luminance	0.0696 (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

#4033B9 #ACB933

analogous

#3369B9 #4033B9 #8333B9

triadic

#4033B9 #B94033 #33B940

tetradic

#4033B9 #B93369 #ACB933 #33B983

square

#4033B9 #B93369 #ACB933 #33B983

split-complementary

#4033B9 #B98333 #69B933

monochromatic

#1F1959 #2F2689 #4033B9 #6458D1 #9188DE

Accessibility & contrast

On white

8.78

#4033B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#4033B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4033B9

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4033B9	#FFFFFF	#000000	##FFFFFF
##4033B9	1.00	8.78	2.39	8.78
#FFFFFF	8.78	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050BD

Deuteranopia (green-blind)

#0045B7

Tritanopia (blue-blind)

#005873

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4033b9;
/* rgb */ color: rgb(64, 51, 185);
/* oklch */ color: oklch(43.1% 0.200 278.3);

Tailwind

colors: {
  custom: {
    50: '#846dcf',
    500: '#4033b9',
    950: '#000000',
  },
}

SCSS

$custom: #4033b9;
$custom-light: #846dcf;
$custom-dark: #000000;

JSON

{
  "hex": "#4033b9",
  "rgb": {
    "r": 64,
    "g": 51,
    "b": 185
  },
  "hsl": {
    "h": 245.821,
    "s": 56.78,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43096,
    "c": 0.1997,
    "h": 278.3
  },
  "luminance": 0.0696
}

Semantic roles & 50–950 ramp

primary

#4033B9

secondary

#C1C880

accent

#E048D1

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4033B9

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

Preview Lab → · Contrast checker → · Palette generator →