#3042AD#3042AD

#3042AD is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.4% C 0.171 H 270.2°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#3042AD
RGB	rgb(48, 66, 173)
HSL	hsl(231, 57%, 43%)
HSV	hsv(231, 72%, 68%)
CMYK	cmyk(72.3%, 61.8%, 0%, 32.2%)
CIE-LAB	lab(33.01, 30.24, -59.24)
CIE-LCH	lch(33.01, 66.51, 297.04°)
OKLab	oklab(43.43% 0.0007 -0.171)
OKLCH	oklch(43.43% 0.171 270.2)
XYZ	xyz(10.7074, 7.5408, 40.4183)
Luminance	0.0754 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3042AD #AD9B30

analogous

#3080AD #3042AD #5C30AD

triadic

#3042AD #AD3042 #42AD30

tetradic

#3042AD #AD3080 #AD9B30 #30AD5C

square

#3042AD #AD3080 #AD9B30 #30AD5C

split-complementary

#3042AD #AD5C30 #80AD30

monochromatic

#151D4D #23307D #3042AD #4D5FCE #7D8ADB

Accessibility & contrast

On white

8.37

#3042AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#3042AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3042AD

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3042AD	#FFFFFF	#000000	##FFFFFF
##3042AD	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B0

Deuteranopia (green-blind)

#0048AB

Tritanopia (blue-blind)

#005D71

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3042ad;
/* rgb */ color: rgb(48, 66, 173);
/* oklch */ color: oklch(43.4% 0.171 270.2);

Tailwind

colors: {
  custom: {
    50: '#7a76c6',
    500: '#3042ad',
    950: '#000000',
  },
}

SCSS

$custom: #3042ad;
$custom-light: #7a76c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3042ad",
  "rgb": {
    "r": 48,
    "g": 66,
    "b": 173
  },
  "hsl": {
    "h": 231.36,
    "s": 56.561,
    "l": 43.333
  },
  "oklch": {
    "l": 0.43433,
    "c": 0.17104,
    "h": 270.2
  },
  "luminance": 0.07542
}

Semantic roles & 50–950 ramp

primary

#3042AD

secondary

#C3B875

accent

#CA48E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #3042AD

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

Preview Lab → · Contrast checker → · Palette generator →