#3040A9#3040A9

#3040A9 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.7% C 0.168 H 270.8°. Best body text is #FFFFFF at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#3040A9
RGB	rgb(48, 64, 169)
HSL	hsl(232, 56%, 43%)
HSV	hsv(232, 72%, 66%)
CMYK	cmyk(71.6%, 62.1%, 0%, 33.7%)
CIE-LAB	lab(32.17, 30.08, -58.23)
CIE-LCH	lch(32.17, 65.54, 297.32°)
OKLab	oklab(42.71% 0.0023 -0.1681)
OKLCH	oklch(42.71% 0.168 270.8)
XYZ	xyz(10.2113, 7.1587, 38.3720)
Luminance	0.0716 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3040A9 #A99930

analogous

#307DA9 #3040A9 #5C30A9

triadic

#3040A9 #A93040 #40A930

tetradic

#3040A9 #A9307D #A99930 #30A95C

square

#3040A9 #A9307D #A99930 #30A95C

split-complementary

#3040A9 #A95C30 #7DA930

monochromatic

#151C4A #222E79 #3040A9 #4A5CCC #7A87D9

Accessibility & contrast

On white

8.63

#3040A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#3040A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3040A9

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3040A9	#FFFFFF	#000000	##FFFFFF
##3040A9	1.00	8.63	2.43	8.63
#FFFFFF	8.63	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AC

Deuteranopia (green-blind)

#0046A7

Tritanopia (blue-blind)

#005B6E

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3040a9;
/* rgb */ color: rgb(48, 64, 169);
/* oklch */ color: oklch(42.7% 0.168 270.8);

Tailwind

colors: {
  custom: {
    50: '#7974c3',
    500: '#3040a9',
    950: '#000000',
  },
}

SCSS

$custom: #3040a9;
$custom-light: #7974c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3040a9",
  "rgb": {
    "r": 48,
    "g": 64,
    "b": 169
  },
  "hsl": {
    "h": 232.066,
    "s": 55.76,
    "l": 42.549
  },
  "oklch": {
    "l": 0.42706,
    "c": 0.1681,
    "h": 270.8
  },
  "luminance": 0.0716
}

Semantic roles & 50–950 ramp

primary

#3040A9

secondary

#C2B773

accent

#CB49DF

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #3040A9

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

Preview Lab → · Contrast checker → · Palette generator →