#3039BB#3039BB

#3039BB is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.2% C 0.200 H 271.6°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#3039BB
RGB	rgb(48, 57, 187)
HSL	hsl(236, 59%, 46%)
HSV	hsv(236, 74%, 73%)
CMYK	cmyk(74.3%, 69.5%, 0%, 26.7%)
CIE-LAB	lab(32.13, 40.92, -68.99)
CIE-LCH	lch(32.13, 80.22, 300.67°)
OKLab	oklab(43.18% 0.0054 -0.1996)
OKLCH	oklch(43.18% 0.2 271.6)
XYZ	xyz(11.6487, 7.1413, 47.7686)
Luminance	0.0714 (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

#3039BB #BBB230

analogous

#307EBB #3039BB #6C30BB

triadic

#3039BB #BB3039 #39BB30

tetradic

#3039BB #BB307E #BBB230 #30BB6C

square

#3039BB #BB307E #BBB230 #30BB6C

split-complementary

#3039BB #BB6C30 #7EBB30

monochromatic

#171B5A #232A8A #3039BB #555DD3 #868BE0

Accessibility & contrast

On white

8.65

#3039BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#3039BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3039BB

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3039BB	#FFFFFF	#000000	##FFFFFF
##3039BB	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BF

Deuteranopia (green-blind)

#0045B9

Tritanopia (blue-blind)

#005D75

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3039bb;
/* rgb */ color: rgb(48, 57, 187);
/* oklch */ color: oklch(43.2% 0.200 271.6);

Tailwind

colors: {
  custom: {
    50: '#7e70d1',
    500: '#3039bb',
    950: '#000000',
  },
}

SCSS

$custom: #3039bb;
$custom-light: #7e70d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3039bb",
  "rgb": {
    "r": 48,
    "g": 57,
    "b": 187
  },
  "hsl": {
    "h": 236.115,
    "s": 59.149,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43175,
    "c": 0.1997,
    "h": 271.6
  },
  "luminance": 0.07142
}

Semantic roles & 50–950 ramp

primary

#3039BB

secondary

#C9C47D

accent

#D845E2

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3039BB

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

Preview Lab → · Contrast checker → · Palette generator →