#3039B5#3039B5

#3039B5 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.6% C 0.192 H 271.8°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#3039B5
RGB	rgb(48, 57, 181)
HSL	hsl(236, 58%, 45%)
HSV	hsv(236, 73%, 71%)
CMYK	cmyk(73.5%, 68.5%, 0%, 29%)
CIE-LAB	lab(31.55, 38.83, -66.38)
CIE-LCH	lch(31.55, 76.91, 300.33°)
OKLab	oklab(42.59% 0.0061 -0.192)
OKLCH	oklch(42.59% 0.192 271.8)
XYZ	xyz(11.0197, 6.8897, 44.4562)
Luminance	0.0689 (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

#3039B5 #B5AC30

analogous

#307BB5 #3039B5 #6A30B5

triadic

#3039B5 #B53039 #39B530

tetradic

#3039B5 #B5307B #B5AC30 #30B56A

square

#3039B5 #B5307B #B5AC30 #30B56A

split-complementary

#3039B5 #B56A30 #7BB530

monochromatic

#161B54 #232A85 #3039B5 #515AD1 #8288DE

Accessibility & contrast

On white

8.83

#3039B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#3039B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3039B5

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3039B5	#FFFFFF	#000000	##FFFFFF
##3039B5	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B9

Deuteranopia (green-blind)

#0044B3

Tritanopia (blue-blind)

#005B72

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3039b5;
/* rgb */ color: rgb(48, 57, 181);
/* oklch */ color: oklch(42.6% 0.192 271.8);

Tailwind

colors: {
  custom: {
    50: '#7c70cc',
    500: '#3039b5',
    950: '#000000',
  },
}

SCSS

$custom: #3039b5;
$custom-light: #7c70cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3039b5",
  "rgb": {
    "r": 48,
    "g": 57,
    "b": 181
  },
  "hsl": {
    "h": 235.94,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42588,
    "c": 0.1921,
    "h": 271.8
  },
  "luminance": 0.06891
}

Semantic roles & 50–950 ramp

primary

#3039B5

secondary

#C7C27A

accent

#D746E1

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #3039B5

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

Preview Lab → · Contrast checker → · Palette generator →