#4030AB#4030AB

#4030AB is a dark, vivid blue. Relative luminance 0.061; OKLCH L 41.3% C 0.186 H 280.4°. Best body text is #FFFFFF at 9.42:1 contrast (WCAG AA passes).

Color values

HEX	#4030AB
RGB	rgb(64, 48, 171)
HSL	hsl(248, 56%, 43%)
HSV	hsv(248, 72%, 67%)
CMYK	cmyk(62.6%, 71.9%, 0%, 32.9%)
CIE-LAB	lab(29.77, 42.77, -63.30)
CIE-LCH	lch(29.77, 76.40, 304.05°)
OKLab	oklab(41.31% 0.0335 -0.1826)
OKLCH	oklch(41.31% 0.186 280.4)
XYZ	xyz(10.5197, 6.1434, 39.1516)
Luminance	0.0614 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4030AB #9BAB30

analogous

#305DAB #4030AB #7D30AB

triadic

#4030AB #AB4030 #30AB40

tetradic

#4030AB #AB305D #9BAB30 #30AB7D

square

#4030AB #AB305D #9BAB30 #30AB7D

split-complementary

#4030AB #AB7D30 #5DAB30

monochromatic

#1C154B #2E237B #4030AB #5C4CCD #887BDA

Accessibility & contrast

On white

9.42

#4030AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#4030AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4030AB

9.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4030AB	#FFFFFF	#000000	##FFFFFF
##4030AB	1.00	9.42	2.23	9.42
#FFFFFF	9.42	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BAF

Deuteranopia (green-blind)

#0041A9

Tritanopia (blue-blind)

#00526A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #4030ab;
/* rgb */ color: rgb(64, 48, 171);
/* oklch */ color: oklch(41.3% 0.186 280.4);

Tailwind

colors: {
  custom: {
    50: '#826ac5',
    500: '#4030ab',
    950: '#000000',
  },
}

SCSS

$custom: #4030ab;
$custom-light: #826ac5;
$custom-dark: #000000;

JSON

{
  "hex": "#4030ab",
  "rgb": {
    "r": 64,
    "g": 48,
    "b": 171
  },
  "hsl": {
    "h": 247.805,
    "s": 56.164,
    "l": 42.941
  },
  "oklch": {
    "l": 0.41307,
    "c": 0.18562,
    "h": 280.4
  },
  "luminance": 0.06144
}

Semantic roles & 50–950 ramp

primary

#4030AB

secondary

#B8C374

accent

#DF48CC

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4030AB

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

Preview Lab → · Contrast checker → · Palette generator →