#42819E#42819E

#42819E is a mid, moderate cyan. Relative luminance 0.193; OKLCH L 57.3% C 0.079 H 230.1°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX#42819E
RGBrgb(66, 129, 158)
HSLhsl(199, 41%, 44%)
HSVhsv(199, 58%, 62%)
CMYKcmyk(58.2%, 18.4%, 0%, 38%)
CIE-LABlab(51.07, -11.48, -21.65)
CIE-LCHlch(51.07, 24.51, 242.07°)
OKLaboklab(57.34% -0.0504 -0.0603)
OKLCHoklch(57.34% 0.079 230.1)
XYZxyz(16.2662, 19.3259, 35.2142)
Luminance0.1933 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42819E #9E5F42
analogous
#429E8D #42819E #42539E
triadic
#42819E #9E4281 #819E42
tetradic
#42819E #8D429E #9E5F42 #539E42
square
#42819E #8D429E #9E5F42 #539E42
split-complementary
#42819E #9E4253 #9E8D42
monochromatic
#1E3B48 #305E73 #42819E #60A0BD #8CBACF

Accessibility & contrast

On white

4.32
#42819E on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.87
#42819E on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #42819E
4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42819E#FFFFFF#000000##000000
##42819E1.004.324.874.87
#FFFFFF4.321.0021.0021.00
#0000004.8721.001.001.00
##0000004.8721.001.001.00

Color blindness preview

Protanopia (red-blind)
#727F9F
Deuteranopia (green-blind)
#65759E
Tritanopia (blue-blind)
#00898A
Achromatopsia (no color)
#7A7A7A

Design tokens & code

CSS
--color: #42819e;
/* rgb */ color: rgb(66, 129, 158);
/* oklch */ color: oklch(57.3% 0.079 230.1);
Tailwind
colors: {
  custom: {
    50: '#7ea5ba',
    500: '#42819e',
    950: '#000000',
  },
}
SCSS
$custom: #42819e;
$custom-light: #7ea5ba;
$custom-dark: #000000;
JSON
{
  "hex": "#42819e",
  "rgb": {
    "r": 66,
    "g": 129,
    "b": 158
  },
  "hsl": {
    "h": 198.913,
    "s": 41.071,
    "l": 43.922
  },
  "oklch": {
    "l": 0.57337,
    "c": 0.07863,
    "h": 230.1
  },
  "luminance": 0.19327
}

Semantic roles & 50–950 ramp

primary
#42819E
secondary
#BA9482
accent
#7D57D1
background
#F8FAFB
surface
#EFF4F6
border
#CACED0
text
#0B0F11
muted
#7C7F80

Preview Lab

Preview with #42819E

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

Preview Lab → · Contrast checker → · Palette generator →

#42819E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva