#3042B1#3042B1

#3042B1 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.8% C 0.176 H 270.2°. Best body text is #FFFFFF at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#3042B1
RGB	rgb(48, 66, 177)
HSL	hsl(232, 57%, 44%)
HSV	hsv(232, 73%, 69%)
CMYK	cmyk(72.9%, 62.7%, 0%, 30.6%)
CIE-LAB	lab(33.35, 31.70, -61.07)
CIE-LCH	lch(33.35, 68.81, 297.43°)
OKLab	oklab(43.79% 0.0006 -0.1764)
OKLCH	oklch(43.79% 0.176 270.2)
XYZ	xyz(11.1002, 7.6980, 42.4873)
Luminance	0.0770 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3042B1 #B19F30

analogous

#3083B1 #3042B1 #5F30B1

triadic

#3042B1 #B13042 #42B130

tetradic

#3042B1 #B13083 #B19F30 #30B15F

square

#3042B1 #B13083 #B19F30 #30B15F

split-complementary

#3042B1 #B15F30 #83B130

monochromatic

#161E51 #233081 #3042B1 #4F61CF #7F8CDC

Accessibility & contrast

On white

8.27

#3042B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#3042B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3042B1

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3042B1	#FFFFFF	#000000	##FFFFFF
##3042B1	1.00	8.27	2.54	8.27
#FFFFFF	8.27	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B5

Deuteranopia (green-blind)

#0049AF

Tritanopia (blue-blind)

#005F73

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3042b1;
/* rgb */ color: rgb(48, 66, 177);
/* oklch */ color: oklch(43.8% 0.176 270.2);

Tailwind

colors: {
  custom: {
    50: '#7b76c9',
    500: '#3042b1',
    950: '#000000',
  },
}

SCSS

$custom: #3042b1;
$custom-light: #7b76c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3042b1",
  "rgb": {
    "r": 48,
    "g": 66,
    "b": 177
  },
  "hsl": {
    "h": 231.628,
    "s": 57.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.43788,
    "c": 0.1764,
    "h": 270.2
  },
  "luminance": 0.07699
}

Semantic roles & 50–950 ramp

primary

#3042B1

secondary

#C5BA78

accent

#CB47E1

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3042B1

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

Preview Lab → · Contrast checker → · Palette generator →