#3040AA#3040AA

#3040AA is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.8% C 0.169 H 270.8°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#3040AA
RGB	rgb(48, 64, 170)
HSL	hsl(232, 56%, 43%)
HSV	hsv(232, 72%, 67%)
CMYK	cmyk(71.8%, 62.4%, 0%, 33.3%)
CIE-LAB	lab(32.25, 30.45, -58.69)
CIE-LCH	lch(32.25, 66.12, 297.42°)
OKLab	oklab(42.8% 0.0022 -0.1694)
OKLCH	oklch(42.8% 0.169 270.8)
XYZ	xyz(10.3056, 7.1964, 38.8683)
Luminance	0.0720 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3040AA #AA9A30

analogous

#307DAA #3040AA #5D30AA

triadic

#3040AA #AA3040 #40AA30

tetradic

#3040AA #AA307D #AA9A30 #30AA5D

square

#3040AA #AA307D #AA9A30 #30AA5D

split-complementary

#3040AA #AA5D30 #7DAA30

monochromatic

#151C4B #232E7A #3040AA #4B5CCC #7B87DA

Accessibility & contrast

On white

8.61

#3040AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#3040AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3040AA

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3040AA	#FFFFFF	#000000	##FFFFFF
##3040AA	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052AD

Deuteranopia (green-blind)

#0046A8

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3040aa;
/* rgb */ color: rgb(48, 64, 170);
/* oklch */ color: oklch(42.8% 0.169 270.8);

Tailwind

colors: {
  custom: {
    50: '#7974c4',
    500: '#3040aa',
    950: '#000000',
  },
}

SCSS

$custom: #3040aa;
$custom-light: #7974c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3040aa",
  "rgb": {
    "r": 48,
    "g": 64,
    "b": 170
  },
  "hsl": {
    "h": 232.131,
    "s": 55.963,
    "l": 42.745
  },
  "oklch": {
    "l": 0.42795,
    "c": 0.16944,
    "h": 270.8
  },
  "luminance": 0.07197
}

Semantic roles & 50–950 ramp

primary

#3040AA

secondary

#C2B874

accent

#CB49DF

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #3040AA

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

Preview Lab → · Contrast checker → · Palette generator →