#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
RGBrgb(58, 66, 221)
HSLhsl(237, 71%, 55%)
HSVhsv(237, 74%, 87%)
CMYKcmyk(73.8%, 70.1%, 0%, 13.3%)
CIE-LABlab(37.87, 48.08, -79.28)
CIE-LCHlch(37.87, 92.72, 301.23°)
OKLaboklab(48.44% 0.0072 -0.2294)
OKLCHoklch(48.44% 0.23 271.8)
XYZxyz(16.7399, 10.0147, 69.4434)
Luminance0.1002 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

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
##3A42DD1.006.993.006.99
#FFFFFF6.991.0021.001.00
#0000003.0021.001.0021.00
##FFFFFF6.991.0021.001.00

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 →

#3A42DD Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva