#3042A4#3042A4

#3042A4 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.7% C 0.159 H 270.3°. Best body text is #FFFFFF at 8.60:1 contrast (WCAG AA passes).

Color values

HEX	#3042A4
RGB	rgb(48, 66, 164)
HSL	hsl(231, 55%, 42%)
HSV	hsv(231, 71%, 64%)
CMYK	cmyk(70.7%, 59.8%, 0%, 35.7%)
CIE-LAB	lab(32.27, 26.93, -55.06)
CIE-LCH	lch(32.27, 61.29, 296.07°)
OKLab	oklab(42.65% 0.0008 -0.1588)
OKLCH	oklch(42.65% 0.159 270.3)
XYZ	xyz(9.8657, 7.2042, 35.9854)
Luminance	0.0721 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3042A4 #A49230

analogous

#307CA4 #3042A4 #5830A4

triadic

#3042A4 #A43042 #42A430

tetradic

#3042A4 #A4307C #A49230 #30A458

square

#3042A4 #A4307C #A49230 #30A458

split-complementary

#3042A4 #A45830 #7CA430

monochromatic

#141C45 #222F75 #3042A4 #485CC9 #7786D7

Accessibility & contrast

On white

8.60

#3042A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#3042A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3042A4

8.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3042A4	#FFFFFF	#000000	##FFFFFF
##3042A4	1.00	8.60	2.44	8.60
#FFFFFF	8.60	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A7

Deuteranopia (green-blind)

#0047A2

Tritanopia (blue-blind)

#005A6C

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3042a4;
/* rgb */ color: rgb(48, 66, 164);
/* oklch */ color: oklch(42.7% 0.159 270.3);

Tailwind

colors: {
  custom: {
    50: '#7876c0',
    500: '#3042a4',
    950: '#000000',
  },
}

SCSS

$custom: #3042a4;
$custom-light: #7876c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3042a4",
  "rgb": {
    "r": 48,
    "g": 66,
    "b": 164
  },
  "hsl": {
    "h": 230.69,
    "s": 54.717,
    "l": 41.569
  },
  "oklch": {
    "l": 0.42653,
    "c": 0.15876,
    "h": 270.3
  },
  "luminance": 0.07205
}

Semantic roles & 50–950 ramp

primary

#3042A4

secondary

#BFB370

accent

#C74ADE

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #3042A4

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

Preview Lab → · Contrast checker → · Palette generator →