#4291D3#4291D3

#4291D3 is a light, vivid cyan. Relative luminance 0.261; OKLCH L 63.7% C 0.126 H 246.7°. Best body text is #000000 at 6.22:1 contrast (WCAG AA passes).

Color values

HEX#4291D3
RGBrgb(66, 145, 211)
HSLhsl(207, 62%, 54%)
HSVhsv(207, 69%, 83%)
CMYKcmyk(68.7%, 31.3%, 0%, 17.3%)
CIE-LABlab(58.14, -2.99, -40.90)
CIE-LCHlch(58.14, 41.01, 265.81°)
OKLaboklab(63.71% -0.0498 -0.1158)
OKLCHoklch(63.71% 0.126 246.7)
XYZxyz(24.1256, 26.1096, 65.3836)
Luminance0.2611 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4291D3 #D38442
analogous
#42D3CC #4291D3 #4249D3
triadic
#4291D3 #D34291 #91D342
tetradic
#4291D3 #CC42D3 #D38442 #49D342
square
#4291D3 #CC42D3 #D38442 #49D342
split-complementary
#4291D3 #D34249 #D3CC42
monochromatic
#1D527D #2972AF #4291D3 #74AEDF #A5CBEA

Accessibility & contrast

On white

3.37
#4291D3 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.22
#4291D3 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4291D3
6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4291D3#FFFFFF#000000##000000
##4291D31.003.376.226.22
#FFFFFF3.371.0021.0021.00
#0000006.2221.001.001.00
##0000006.2221.001.001.00

Color blindness preview

Protanopia (red-blind)
#7393D6
Deuteranopia (green-blind)
#5F86D2
Tritanopia (blue-blind)
#00A1A8
Achromatopsia (no color)
#8C8C8C

Design tokens & code

CSS
--color: #4291d3;
/* rgb */ color: rgb(66, 145, 211);
/* oklch */ color: oklch(63.7% 0.126 246.7);
Tailwind
colors: {
  custom: {
    50: '#86b1e1',
    500: '#4291d3',
    950: '#000000',
  },
}
SCSS
$custom: #4291d3;
$custom-light: #86b1e1;
$custom-dark: #000000;
JSON
{
  "hex": "#4291d3",
  "rgb": {
    "r": 66,
    "g": 145,
    "b": 211
  },
  "hsl": {
    "h": 207.31,
    "s": 62.232,
    "l": 54.314
  },
  "oklch": {
    "l": 0.63705,
    "c": 0.12602,
    "h": 246.7
  },
  "luminance": 0.26112
}

Semantic roles & 50–950 ramp

primary
#4291D3
secondary
#D7B69A
accent
#8D42E5
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #4291D3

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

Preview Lab → · Contrast checker → · Palette generator →

#4291D3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva