#4033B8#4033B8

#4033B8 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 43.0% C 0.198 H 278.4°. Best body text is #FFFFFF at 8.81:1 contrast (WCAG AA passes).

Color values

HEX	#4033B8
RGB	rgb(64, 51, 184)
HSL	hsl(246, 57%, 46%)
HSV	hsv(246, 72%, 72%)
CMYK	cmyk(65.2%, 72.3%, 0%, 27.8%)
CIE-LAB	lab(31.62, 45.21, -68.02)
CIE-LCH	lch(31.62, 81.67, 303.61°)
OKLab	oklab(43% 0.0289 -0.1964)
OKLCH	oklch(43% 0.198 278.4)
XYZ	xyz(11.9471, 6.9174, 46.0437)
Luminance	0.0692 (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

#4033B8 #ABB833

analogous

#3368B8 #4033B8 #8233B8

triadic

#4033B8 #B84033 #33B840

tetradic

#4033B8 #B83368 #ABB833 #33B882

square

#4033B8 #B83368 #ABB833 #33B882

split-complementary

#4033B8 #B88233 #68B833

monochromatic

#1F1858 #2F2688 #4033B8 #6358D1 #9088DE

Accessibility & contrast

On white

8.81

#4033B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#4033B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4033B8

8.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4033B8	#FFFFFF	#000000	##FFFFFF
##4033B8	1.00	8.81	2.38	8.81
#FFFFFF	8.81	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050BC

Deuteranopia (green-blind)

#0045B6

Tritanopia (blue-blind)

#005872

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #4033b8;
/* rgb */ color: rgb(64, 51, 184);
/* oklch */ color: oklch(43.0% 0.198 278.4);

Tailwind

colors: {
  custom: {
    50: '#846dcf',
    500: '#4033b8',
    950: '#000000',
  },
}

SCSS

$custom: #4033b8;
$custom-light: #846dcf;
$custom-dark: #000000;

JSON

{
  "hex": "#4033b8",
  "rgb": {
    "r": 64,
    "g": 51,
    "b": 184
  },
  "hsl": {
    "h": 245.865,
    "s": 56.596,
    "l": 46.078
  },
  "oklch": {
    "l": 0.42998,
    "c": 0.19848,
    "h": 278.4
  },
  "luminance": 0.06918
}

Semantic roles & 50–950 ramp

primary

#4033B8

secondary

#C1C87F

accent

#E048D1

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4033B8

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

Preview Lab → · Contrast checker → · Palette generator →