#3033B1#3033B1

#3033B1 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.2% C 0.194 H 273.0°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#3033B1
RGB	rgb(48, 51, 177)
HSL	hsl(239, 57%, 44%)
HSV	hsv(239, 73%, 69%)
CMYK	cmyk(72.9%, 71.2%, 0%, 30.6%)
CIE-LAB	lab(29.84, 41.09, -66.83)
CIE-LCH	lch(29.84, 78.45, 301.58°)
OKLab	oklab(41.23% 0.01 -0.1933)
OKLCH	oklch(41.23% 0.194 273)
XYZ	xyz(10.3359, 6.1693, 42.2325)
Luminance	0.0617 (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

#3033B1 #B1AE30

analogous

#3074B1 #3033B1 #6E30B1

triadic

#3033B1 #B13033 #33B130

tetradic

#3033B1 #B13074 #B1AE30 #30B16E

square

#3033B1 #B13074 #B1AE30 #30B16E

split-complementary

#3033B1 #B16E30 #74B130

monochromatic

#161751 #232581 #3033B1 #4F52CF #7F81DC

Accessibility & contrast

On white

9.40

#3033B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#3033B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3033B1

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3033B1	#FFFFFF	#000000	##FFFFFF
##3033B1	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB5

Deuteranopia (green-blind)

#0040AF

Tritanopia (blue-blind)

#00566E

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3033b1;
/* rgb */ color: rgb(48, 51, 177);
/* oklch */ color: oklch(41.2% 0.194 273.0);

Tailwind

colors: {
  custom: {
    50: '#7c6cc9',
    500: '#3033b1',
    950: '#000000',
  },
}

SCSS

$custom: #3033b1;
$custom-light: #7c6cc9;
$custom-dark: #000000;

JSON

{
  "hex": "#3033b1",
  "rgb": {
    "r": 48,
    "g": 51,
    "b": 177
  },
  "hsl": {
    "h": 238.605,
    "s": 57.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.41233,
    "c": 0.19357,
    "h": 273
  },
  "luminance": 0.0617
}

Semantic roles & 50–950 ramp

primary

#3033B1

secondary

#C5C378

accent

#DD47E1

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3033B1

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

Preview Lab → · Contrast checker → · Palette generator →