#3A33B8#3A33B8

#3A33B8 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.6% C 0.200 H 276.1°. Best body text is #FFFFFF at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#3A33B8
RGB	rgb(58, 51, 184)
HSL	hsl(243, 57%, 46%)
HSV	hsv(243, 72%, 72%)
CMYK	cmyk(68.5%, 72.3%, 0%, 27.8%)
CIE-LAB	lab(31.18, 44.51, -68.76)
CIE-LCH	lch(31.18, 81.91, 302.91°)
OKLab	oklab(42.57% 0.0211 -0.1987)
OKLCH	oklch(42.57% 0.2 276.1)
XYZ	xyz(11.5776, 6.7268, 46.0264)
Luminance	0.0673 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 3.93

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A33B8 #B1B833

analogous

#336EB8 #3A33B8 #7C33B8

triadic

#3A33B8 #B83A33 #33B83A

tetradic

#3A33B8 #B8336E #B1B833 #33B87C

square

#3A33B8 #B8336E #B1B833 #33B87C

split-complementary

#3A33B8 #B87C33 #6EB833

monochromatic

#1C1858 #2B2688 #3A33B8 #5E58D1 #8C88DE

Accessibility & contrast

On white

8.95

#3A33B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#3A33B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A33B8

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A33B8	#FFFFFF	#000000	##FFFFFF
##3A33B8	1.00	8.95	2.35	8.95
#FFFFFF	8.95	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FBC

Deuteranopia (green-blind)

#0043B6

Tritanopia (blue-blind)

#005872

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3a33b8;
/* rgb */ color: rgb(58, 51, 184);
/* oklch */ color: oklch(42.6% 0.200 276.1);

Tailwind

colors: {
  custom: {
    50: '#826ccf',
    500: '#3a33b8',
    950: '#000000',
  },
}

SCSS

$custom: #3a33b8;
$custom-light: #826ccf;
$custom-dark: #000000;

JSON

{
  "hex": "#3a33b8",
  "rgb": {
    "r": 58,
    "g": 51,
    "b": 184
  },
  "hsl": {
    "h": 243.158,
    "s": 56.596,
    "l": 46.078
  },
  "oklch": {
    "l": 0.4257,
    "c": 0.1998,
    "h": 276.1
  },
  "luminance": 0.06728
}

Semantic roles & 50–950 ramp

primary

#3A33B8

secondary

#C4C87F

accent

#E048D8

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3A33B8

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

Preview Lab → · Contrast checker → · Palette generator →