#3042AB#3042AB

#3042AB is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.3% C 0.168 H 270.3°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#3042AB
RGB	rgb(48, 66, 171)
HSL	hsl(231, 56%, 43%)
HSV	hsv(231, 72%, 67%)
CMYK	cmyk(71.9%, 61.4%, 0%, 32.9%)
CIE-LAB	lab(32.84, 29.51, -58.32)
CIE-LCH	lch(32.84, 65.36, 296.84°)
OKLab	oklab(43.26% 0.0007 -0.1683)
OKLCH	oklch(43.26% 0.168 270.3)
XYZ	xyz(10.5153, 7.4640, 39.4067)
Luminance	0.0746 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3042AB #AB9930

analogous

#307FAB #3042AB #5C30AB

triadic

#3042AB #AB3042 #42AB30

tetradic

#3042AB #AB307F #AB9930 #30AB5C

square

#3042AB #AB307F #AB9930 #30AB5C

split-complementary

#3042AB #AB5C30 #7FAB30

monochromatic

#151D4B #23307B #3042AB #4C5ECD #7B89DA

Accessibility & contrast

On white

8.42

#3042AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3042AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3042AB

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3042AB	#FFFFFF	#000000	##FFFFFF
##3042AB	1.00	8.42	2.49	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AE

Deuteranopia (green-blind)

#0048A9

Tritanopia (blue-blind)

#005D70

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3042ab;
/* rgb */ color: rgb(48, 66, 171);
/* oklch */ color: oklch(43.3% 0.168 270.3);

Tailwind

colors: {
  custom: {
    50: '#7976c5',
    500: '#3042ab',
    950: '#000000',
  },
}

SCSS

$custom: #3042ab;
$custom-light: #7976c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3042ab",
  "rgb": {
    "r": 48,
    "g": 66,
    "b": 171
  },
  "hsl": {
    "h": 231.22,
    "s": 56.164,
    "l": 42.941
  },
  "oklch": {
    "l": 0.43258,
    "c": 0.16833,
    "h": 270.3
  },
  "luminance": 0.07465
}

Semantic roles & 50–950 ramp

primary

#3042AB

secondary

#C3B774

accent

#C948DF

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #3042AB

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

Preview Lab → · Contrast checker → · Palette generator →