#3B33B8#3B33B8

#3B33B8 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.6% C 0.200 H 276.4°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#3B33B8
RGB	rgb(59, 51, 184)
HSL	hsl(244, 57%, 46%)
HSV	hsv(244, 72%, 72%)
CMYK	cmyk(67.9%, 72.3%, 0%, 27.8%)
CIE-LAB	lab(31.25, 44.62, -68.64)
CIE-LCH	lch(31.25, 81.87, 303.03°)
OKLab	oklab(42.64% 0.0223 -0.1983)
OKLCH	oklch(42.64% 0.2 276.4)
XYZ	xyz(11.6364, 6.7571, 46.0291)
Luminance	0.0676 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 4.02

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B33B8 #B0B833

analogous

#336DB8 #3B33B8 #7D33B8

triadic

#3B33B8 #B83B33 #33B83B

tetradic

#3B33B8 #B8336D #B0B833 #33B87D

square

#3B33B8 #B8336D #B0B833 #33B87D

split-complementary

#3B33B8 #B87D33 #6DB833

monochromatic

#1C1858 #2C2688 #3B33B8 #5F58D1 #8D88DE

Accessibility & contrast

On white

8.93

#3B33B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#3B33B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B33B8

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B33B8	#FFFFFF	#000000	##FFFFFF
##3B33B8	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FBC

Deuteranopia (green-blind)

#0044B6

Tritanopia (blue-blind)

#005872

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3b33b8;
/* rgb */ color: rgb(59, 51, 184);
/* oklch */ color: oklch(42.6% 0.200 276.4);

Tailwind

colors: {
  custom: {
    50: '#826ccf',
    500: '#3b33b8',
    950: '#000000',
  },
}

SCSS

$custom: #3b33b8;
$custom-light: #826ccf;
$custom-dark: #000000;

JSON

{
  "hex": "#3b33b8",
  "rgb": {
    "r": 59,
    "g": 51,
    "b": 184
  },
  "hsl": {
    "h": 243.609,
    "s": 56.596,
    "l": 46.078
  },
  "oklch": {
    "l": 0.42639,
    "c": 0.19957,
    "h": 276.4
  },
  "luminance": 0.06758
}

Semantic roles & 50–950 ramp

primary

#3B33B8

secondary

#C3C87F

accent

#E048D7

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3B33B8

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

Preview Lab → · Contrast checker → · Palette generator →