#4088CB#4088CB

#4088CB is a mid, vivid cyan. Relative luminance 0.230; OKLCH L 61.2% C 0.125 H 249.2°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX#4088CB
RGBrgb(64, 136, 203)
HSLhsl(209, 57%, 52%)
HSVhsv(209, 68%, 80%)
CMYKcmyk(68.5%, 33%, 0%, 20.4%)
CIE-LABlab(55.08, -0.82, -41.22)
CIE-LCHlch(55.08, 41.23, 268.87°)
OKLaboklab(61.15% -0.0445 -0.1168)
OKLCHoklch(61.15% 0.125 249.2)
XYZxyz(21.6940, 23.0078, 59.7860)
Luminance0.2301 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4088CB #CB8340
analogous
#40CBC9 #4088CB #4042CB
triadic
#4088CB #CB4088 #88CB40
tetradic
#4088CB #C940CB #CB8340 #42CB40
square
#4088CB #C940CB #CB8340 #42CB40
split-complementary
#4088CB #CB4042 #CBC940
monochromatic
#1F4A72 #2C69A2 #4088CB #70A6D8 #A0C4E5

Accessibility & contrast

On white

3.75
#4088CB on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.60
#4088CB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4088CB
5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4088CB#FFFFFF#000000##000000
##4088CB1.003.755.605.60
#FFFFFF3.751.0021.0021.00
#0000005.6021.001.001.00
##0000005.6021.001.001.00

Color blindness preview

Protanopia (red-blind)
#6A8BCE
Deuteranopia (green-blind)
#577ECA
Tritanopia (blue-blind)
#0098A0
Achromatopsia (no color)
#848484

Design tokens & code

CSS
--color: #4088cb;
/* rgb */ color: rgb(64, 136, 203);
/* oklch */ color: oklch(61.2% 0.125 249.2);
Tailwind
colors: {
  custom: {
    50: '#84aadb',
    500: '#4088cb',
    950: '#000000',
  },
}
SCSS
$custom: #4088cb;
$custom-light: #84aadb;
$custom-dark: #000000;
JSON
{
  "hex": "#4088cb",
  "rgb": {
    "r": 64,
    "g": 136,
    "b": 203
  },
  "hsl": {
    "h": 208.921,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.61152,
    "c": 0.12501,
    "h": 249.2
  },
  "luminance": 0.2301
}

Semantic roles & 50–950 ramp

primary
#4088CB
secondary
#D2B295
accent
#9147E0
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #4088CB

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

Preview Lab → · Contrast checker → · Palette generator →

#4088CB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva