#3039B4#3039B4

#3039B4 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.5% C 0.191 H 271.9°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#3039B4
RGB	rgb(48, 57, 180)
HSL	hsl(236, 58%, 45%)
HSV	hsv(236, 73%, 71%)
CMYK	cmyk(73.3%, 68.3%, 0%, 29.4%)
CIE-LAB	lab(31.46, 38.48, -65.94)
CIE-LCH	lch(31.46, 76.35, 300.27°)
OKLab	oklab(42.49% 0.0062 -0.1907)
OKLCH	oklch(42.49% 0.191 271.9)
XYZ	xyz(10.9175, 6.8488, 43.9177)
Luminance	0.0685 (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

#3039B4 #B4AB30

analogous

#307BB4 #3039B4 #6930B4

triadic

#3039B4 #B43039 #39B430

tetradic

#3039B4 #B4307B #B4AB30 #30B469

square

#3039B4 #B4307B #B4AB30 #30B469

split-complementary

#3039B4 #B46930 #7BB430

monochromatic

#161A53 #232A84 #3039B4 #5159D1 #8187DD

Accessibility & contrast

On white

8.86

#3039B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#3039B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3039B4

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3039B4	#FFFFFF	#000000	##FFFFFF
##3039B4	1.00	8.86	2.37	8.86
#FFFFFF	8.86	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B8

Deuteranopia (green-blind)

#0044B2

Tritanopia (blue-blind)

#005A72

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3039b4;
/* rgb */ color: rgb(48, 57, 180);
/* oklch */ color: oklch(42.5% 0.191 271.9);

Tailwind

colors: {
  custom: {
    50: '#7c70cc',
    500: '#3039b4',
    950: '#000000',
  },
}

SCSS

$custom: #3039b4;
$custom-light: #7c70cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3039b4",
  "rgb": {
    "r": 48,
    "g": 57,
    "b": 180
  },
  "hsl": {
    "h": 235.909,
    "s": 57.895,
    "l": 44.706
  },
  "oklch": {
    "l": 0.42491,
    "c": 0.19082,
    "h": 271.9
  },
  "luminance": 0.0685
}

Semantic roles & 50–950 ramp

primary

#3039B4

secondary

#C6C179

accent

#D747E1

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3039B4

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

Preview Lab → · Contrast checker → · Palette generator →