#4991DB#4991DB

#4991DB is a light, vivid cyan. Relative luminance 0.268; OKLCH L 64.4% C 0.133 H 251.2°. Best body text is #000000 at 6.36:1 contrast (WCAG AA passes).

Color values

HEX#4991DB
RGBrgb(73, 145, 219)
HSLhsl(210, 67%, 57%)
HSVhsv(210, 67%, 86%)
CMYKcmyk(66.7%, 33.8%, 0%, 14.1%)
CIE-LABlab(58.77, 0.85, -44.37)
CIE-LCHlch(58.77, 44.38, 271.10°)
OKLaboklab(64.39% -0.0429 -0.1258)
OKLCHoklch(64.39% 0.133 251.2)
XYZxyz(25.6545, 26.7791, 70.8210)
Luminance0.2678 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4991DB #DB9349
analogous
#49DADB #4991DB #4A49DB
triadic
#4991DB #DB4991 #91DB49
tetradic
#4991DB #DB49DA #DB9349 #49DB4A
square
#4991DB #DB49DA #DB9349 #49DB4A
split-complementary
#4991DB #DB4A49 #DADB49
monochromatic
#1C548E #2672C1 #4991DB #7CB0E5 #AFCFEF

Accessibility & contrast

On white

3.30
#4991DB on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.36
#4991DB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4991DB
6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4991DB#FFFFFF#000000##000000
##4991DB1.003.306.366.36
#FFFFFF3.301.0021.0021.00
#0000006.3621.001.001.00
##0000006.3621.001.001.00

Color blindness preview

Protanopia (red-blind)
#7095DE
Deuteranopia (green-blind)
#5C87DA
Tritanopia (blue-blind)
#00A2AC
Achromatopsia (no color)
#8D8D8D

Design tokens & code

CSS
--color: #4991db;
/* rgb */ color: rgb(73, 145, 219);
/* oklch */ color: oklch(64.4% 0.133 251.2);
Tailwind
colors: {
  custom: {
    50: '#8ab0e6',
    500: '#4991db',
    950: '#000000',
  },
}
SCSS
$custom: #4991db;
$custom-light: #8ab0e6;
$custom-dark: #000000;
JSON
{
  "hex": "#4991db",
  "rgb": {
    "r": 73,
    "g": 145,
    "b": 219
  },
  "hsl": {
    "h": 210.411,
    "s": 66.972,
    "l": 57.255
  },
  "oklch": {
    "l": 0.64393,
    "c": 0.13291,
    "h": 251.2
  },
  "luminance": 0.26782
}

Semantic roles & 50–950 ramp

primary
#4991DB
secondary
#DDC0A2
accent
#953EEA
background
#F9FAFE
surface
#F1F4FC
border
#CBCED5
text
#0D1016
muted
#7E7F84

Preview Lab

Preview with #4991DB

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

Preview Lab → · Contrast checker → · Palette generator →

#4991DB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva