#3042B3#3042B3

#3042B3 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.0% C 0.179 H 270.2°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#3042B3
RGB	rgb(48, 66, 179)
HSL	hsl(232, 58%, 45%)
HSV	hsv(232, 73%, 70%)
CMYK	cmyk(73.2%, 63.1%, 0%, 29.8%)
CIE-LAB	lab(33.52, 32.43, -61.98)
CIE-LCH	lch(33.52, 69.95, 297.62°)
OKLab	oklab(43.97% 0.0005 -0.1791)
OKLCH	oklch(43.97% 0.179 270.2)
XYZ	xyz(11.3010, 7.7783, 43.5449)
Luminance	0.0778 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3042B3 #B3A130

analogous

#3083B3 #3042B3 #6030B3

triadic

#3042B3 #B33042 #42B330

tetradic

#3042B3 #B33083 #B3A130 #30B360

square

#3042B3 #B33083 #B3A130 #30B360

split-complementary

#3042B3 #B36030 #83B330

monochromatic

#161E52 #233083 #3042B3 #5062D0 #808DDD

Accessibility & contrast

On white

8.22

#3042B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3042B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3042B3

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3042B3	#FFFFFF	#000000	##FFFFFF
##3042B3	1.00	8.22	2.56	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B7

Deuteranopia (green-blind)

#0049B1

Tritanopia (blue-blind)

#005F74

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3042b3;
/* rgb */ color: rgb(48, 66, 179);
/* oklch */ color: oklch(44.0% 0.179 270.2);

Tailwind

colors: {
  custom: {
    50: '#7b76cb',
    500: '#3042b3',
    950: '#000000',
  },
}

SCSS

$custom: #3042b3;
$custom-light: #7b76cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3042b3",
  "rgb": {
    "r": 48,
    "g": 66,
    "b": 179
  },
  "hsl": {
    "h": 231.756,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.43967,
    "c": 0.17906,
    "h": 270.2
  },
  "luminance": 0.07779
}

Semantic roles & 50–950 ramp

primary

#3042B3

secondary

#C6BB79

accent

#CC47E1

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3042B3

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

Preview Lab → · Contrast checker → · Palette generator →