#3A42DD#3A42DD

#3A42DD is a mid, highly saturated blue. Relative luminance 0.100; OKLCH L 48.4% C 0.230 H 271.8°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#3A42DD
RGB	rgb(58, 66, 221)
HSL	hsl(237, 71%, 55%)
HSV	hsv(237, 74%, 87%)
CMYK	cmyk(73.8%, 70.1%, 0%, 13.3%)
CIE-LAB	lab(37.87, 48.08, -79.28)
CIE-LCH	lch(37.87, 92.72, 301.23°)
OKLab	oklab(48.44% 0.0072 -0.2294)
OKLCH	oklch(48.44% 0.23 271.8)
XYZ	xyz(16.7399, 10.0147, 69.4434)
Luminance	0.1002 (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

#3A42DD #DDD53A

analogous

#3A94DD #3A42DD #833ADD

triadic

#3A42DD #DD3A42 #42DD3A

tetradic

#3A42DD #DD3A94 #DDD53A #3ADD83

square

#3A42DD #DD3A94 #DDD53A #3ADD83

split-complementary

#3A42DD #DD833A #94DD3A

monochromatic

#171C86 #2028BA #3A42DD #6E74E6 #A2A6EF

Accessibility & contrast

On white

6.99

#3A42DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.00

#3A42DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A42DD

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A42DD	#FFFFFF	#000000	##FFFFFF
##3A42DD	1.00	6.99	3.00	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061E2

Deuteranopia (green-blind)

#0051DA

Tritanopia (blue-blind)

#006D8B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3a42dd;
/* rgb */ color: rgb(58, 66, 221);
/* oklch */ color: oklch(48.4% 0.230 271.8);

Tailwind

colors: {
  custom: {
    50: '#8877e9',
    500: '#3a42dd',
    950: '#000000',
  },
}

SCSS

$custom: #3a42dd;
$custom-light: #8877e9;
$custom-dark: #000000;

JSON

{
  "hex": "#3a42dd",
  "rgb": {
    "r": 58,
    "g": 66,
    "b": 221
  },
  "hsl": {
    "h": 237.055,
    "s": 70.563,
    "l": 54.706
  },
  "oklch": {
    "l": 0.48437,
    "c": 0.22953,
    "h": 271.8
  },
  "luminance": 0.10016
}

Semantic roles & 50–950 ramp

primary

#3A42DD

secondary

#DCD897

accent

#E53AED

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0D0916

muted

#7E7B84

Preview Lab

Preview with #3A42DD

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

Preview Lab → · Contrast checker → · Palette generator →