#4090CF#4090CF

#4090CF is a light, vivid cyan. Relative luminance 0.255; OKLCH L 63.2% C 0.123 H 245.4°. Best body text is #000000 at 6.11:1 contrast (WCAG AA passes).

Color values

HEX#4090CF
RGBrgb(64, 144, 207)
HSLhsl(206, 60%, 53%)
HSVhsv(206, 69%, 81%)
CMYKcmyk(69.1%, 30.4%, 0%, 18.8%)
CIE-LABlab(57.60, -4.10, -39.52)
CIE-LCHlch(57.60, 39.73, 264.08°)
OKLaboklab(63.2% -0.0512 -0.1118)
OKLCHoklch(63.2% 0.123 245.4)
XYZxyz(23.3458, 25.5390, 62.7185)
Luminance0.2554 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4090CF #CF7F40
analogous
#40CFC7 #4090CF #4048CF
triadic
#4090CF #CF4090 #90CF40
tetradic
#4090CF #C740CF #CF7F40 #48CF40
square
#4090CF #C740CF #CF7F40 #48CF40
split-complementary
#4090CF #CF4048 #CFC740
monochromatic
#1E5077 #2A70A8 #4090CF #71ACDB #A2C9E8

Accessibility & contrast

On white

3.44
#4090CF on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.11
#4090CF on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4090CF
6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4090CF#FFFFFF#000000##000000
##4090CF1.003.446.116.11
#FFFFFF3.441.0021.0021.00
#0000006.1121.001.001.00
##0000006.1121.001.001.00

Color blindness preview

Protanopia (red-blind)
#7492D2
Deuteranopia (green-blind)
#6084CE
Tritanopia (blue-blind)
#009FA6
Achromatopsia (no color)
#8A8A8A

Design tokens & code

CSS
--color: #4090cf;
/* rgb */ color: rgb(64, 144, 207);
/* oklch */ color: oklch(63.2% 0.123 245.4);
Tailwind
colors: {
  custom: {
    50: '#85b0de',
    500: '#4090cf',
    950: '#000000',
  },
}
SCSS
$custom: #4090cf;
$custom-light: #85b0de;
$custom-dark: #000000;
JSON
{
  "hex": "#4090cf",
  "rgb": {
    "r": 64,
    "g": 144,
    "b": 207
  },
  "hsl": {
    "h": 206.434,
    "s": 59.833,
    "l": 53.137
  },
  "oklch": {
    "l": 0.63196,
    "c": 0.12295,
    "h": 245.4
  },
  "luminance": 0.25542
}

Semantic roles & 50–950 ramp

primary
#4090CF
secondary
#D4B297
accent
#8A45E3
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #4090CF

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

Preview Lab → · Contrast checker → · Palette generator →

#4090CF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva