#3039B1#3039B1

#3039B1 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.2% C 0.187 H 272.0°. Best body text is #FFFFFF at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#3039B1
RGB	rgb(48, 57, 177)
HSL	hsl(236, 57%, 44%)
HSV	hsv(236, 73%, 69%)
CMYK	cmyk(72.9%, 67.8%, 0%, 30.6%)
CIE-LAB	lab(31.18, 37.43, -64.62)
CIE-LCH	lch(31.18, 74.68, 300.08°)
OKLab	oklab(42.2% 0.0065 -0.1868)
OKLCH	oklch(42.2% 0.187 272)
XYZ	xyz(10.6152, 6.7279, 42.3256)
Luminance	0.0673 (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

#3039B1 #B1A830

analogous

#307AB1 #3039B1 #6830B1

triadic

#3039B1 #B13039 #39B130

tetradic

#3039B1 #B1307A #B1A830 #30B168

square

#3039B1 #B1307A #B1A830 #30B168

split-complementary

#3039B1 #B16830 #7AB130

monochromatic

#161A51 #232981 #3039B1 #4F58CF #7F86DC

Accessibility & contrast

On white

8.95

#3039B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#3039B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3039B1

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3039B1	#FFFFFF	#000000	##FFFFFF
##3039B1	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)

#004FB5

Deuteranopia (green-blind)

#0043AF

Tritanopia (blue-blind)

#005970

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3039b1;
/* rgb */ color: rgb(48, 57, 177);
/* oklch */ color: oklch(42.2% 0.187 272.0);

Tailwind

colors: {
  custom: {
    50: '#7b70c9',
    500: '#3039b1',
    950: '#000000',
  },
}

SCSS

$custom: #3039b1;
$custom-light: #7b70c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3039b1",
  "rgb": {
    "r": 48,
    "g": 57,
    "b": 177
  },
  "hsl": {
    "h": 235.814,
    "s": 57.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.42202,
    "c": 0.18696,
    "h": 272
  },
  "luminance": 0.06729
}

Semantic roles & 50–950 ramp

primary

#3039B1

secondary

#C5C078

accent

#D647E1

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3039B1

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

Preview Lab → · Contrast checker → · Palette generator →