#3039B3#3039B3

#3039B3 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.4% C 0.190 H 271.9°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#3039B3
RGB	rgb(48, 57, 179)
HSL	hsl(236, 58%, 45%)
HSV	hsv(236, 73%, 70%)
CMYK	cmyk(73.2%, 68.2%, 0%, 29.8%)
CIE-LAB	lab(31.37, 38.13, -65.50)
CIE-LCH	lch(31.37, 75.79, 300.20°)
OKLab	oklab(42.4% 0.0063 -0.1894)
OKLCH	oklch(42.4% 0.19 271.9)
XYZ	xyz(10.8160, 6.8082, 43.3832)
Luminance	0.0681 (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

#3039B3 #B3AA30

analogous

#307BB3 #3039B3 #6930B3

triadic

#3039B3 #B33039 #39B330

tetradic

#3039B3 #B3307B #B3AA30 #30B369

square

#3039B3 #B3307B #B3AA30 #30B369

split-complementary

#3039B3 #B36930 #7BB330

monochromatic

#161A52 #232A83 #3039B3 #5059D0 #8087DD

Accessibility & contrast

On white

8.89

#3039B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#3039B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3039B3

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3039B3	#FFFFFF	#000000	##FFFFFF
##3039B3	1.00	8.89	2.36	8.89
#FFFFFF	8.89	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B7

Deuteranopia (green-blind)

#0044B1

Tritanopia (blue-blind)

#005A71

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3039b3;
/* rgb */ color: rgb(48, 57, 179);
/* oklch */ color: oklch(42.4% 0.190 271.9);

Tailwind

colors: {
  custom: {
    50: '#7c70cb',
    500: '#3039b3',
    950: '#000000',
  },
}

SCSS

$custom: #3039b3;
$custom-light: #7c70cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3039b3",
  "rgb": {
    "r": 48,
    "g": 57,
    "b": 179
  },
  "hsl": {
    "h": 235.878,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.42395,
    "c": 0.18954,
    "h": 271.9
  },
  "luminance": 0.06809
}

Semantic roles & 50–950 ramp

primary

#3039B3

secondary

#C6C179

accent

#D647E1

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3039B3

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

Preview Lab → · Contrast checker → · Palette generator →