#4581CB#4581CB

#4581CB is a mid, vivid cyan. Relative luminance 0.213; OKLCH L 59.8% C 0.130 H 254.8°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX#4581CB
RGBrgb(69, 129, 203)
HSLhsl(213, 56%, 53%)
HSVhsv(213, 66%, 80%)
CMYKcmyk(66%, 36.5%, 0%, 20.4%)
CIE-LABlab(53.25, 4.17, -44.10)
CIE-LCHlch(53.25, 44.30, 275.40°)
OKLaboklab(59.77% -0.034 -0.1252)
OKLCHoklch(59.77% 0.13 254.8)
XYZxyz(21.0801, 21.2754, 59.4840)
Luminance0.2128 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4581CB #CB8F45
analogous
#45C4CB #4581CB #4C45CB
triadic
#4581CB #CB4581 #81CB45
tetradic
#4581CB #CB45C4 #CB8F45 #45CB4C
square
#4581CB #CB45C4 #CB8F45 #45CB4C
split-complementary
#4581CB #CB4C45 #C4CB45
monochromatic
#214675 #2E63A5 #4581CB #75A1D8 #A5C2E6

Accessibility & contrast

On white

4.00
#4581CB on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.26
#4581CB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4581CB
5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4581CB#FFFFFF#000000##000000
##4581CB1.004.005.265.26
#FFFFFF4.001.0021.0021.00
#0000005.2621.001.001.00
##0000005.2621.001.001.00

Color blindness preview

Protanopia (red-blind)
#6086CE
Deuteranopia (green-blind)
#4D79C9
Tritanopia (blue-blind)
#00929C
Achromatopsia (no color)
#7F7F7F

Design tokens & code

CSS
--color: #4581cb;
/* rgb */ color: rgb(69, 129, 203);
/* oklch */ color: oklch(59.8% 0.130 254.8);
Tailwind
colors: {
  custom: {
    50: '#86a5db',
    500: '#4581cb',
    950: '#000000',
  },
}
SCSS
$custom: #4581cb;
$custom-light: #86a5db;
$custom-dark: #000000;
JSON
{
  "hex": "#4581cb",
  "rgb": {
    "r": 69,
    "g": 129,
    "b": 203
  },
  "hsl": {
    "h": 213.134,
    "s": 56.303,
    "l": 53.333
  },
  "oklch": {
    "l": 0.5977,
    "c": 0.12978,
    "h": 254.8
  },
  "luminance": 0.21278
}

Semantic roles & 50–950 ramp

primary
#4581CB
secondary
#D3B999
accent
#9C48E0
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C0F15
muted
#7D7F83

Preview Lab

Preview with #4581CB

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

Preview Lab → · Contrast checker → · Palette generator →

#4581CB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva