#4E91B8#4E91B8

#4E91B8 is a light, moderate cyan. Relative luminance 0.253; OKLCH L 62.8% C 0.090 H 236.2°. Best body text is #000000 at 6.07:1 contrast (WCAG AA passes).

Color values

HEX#4E91B8
RGBrgb(78, 145, 184)
HSLhsl(202, 43%, 51%)
HSVhsv(202, 58%, 72%)
CMYKcmyk(57.6%, 21.2%, 0%, 27.8%)
CIE-LABlab(57.39, -9.75, -26.80)
CIE-LCHlch(57.39, 28.52, 250.00°)
OKLaboklab(62.85% -0.0502 -0.0749)
OKLCHoklch(62.85% 0.09 236.2)
XYZxyz(21.9158, 25.3292, 49.0722)
Luminance0.2533 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4E91B8 #B8754E
analogous
#4EB8AA #4E91B8 #4E5CB8
triadic
#4E91B8 #B84E91 #91B84E
tetradic
#4E91B8 #AA4EB8 #B8754E #5CB84E
square
#4E91B8 #AA4EB8 #B8754E #5CB84E
split-complementary
#4E91B8 #B84E5C #B8AA4E
monochromatic
#284E64 #39708F #4E91B8 #7AACCA #A5C7DB

Accessibility & contrast

On white

3.46
#4E91B8 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.07
#4E91B8 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4E91B8
6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4E91B8#FFFFFF#000000##000000
##4E91B81.003.466.076.07
#FFFFFF3.461.0021.0021.00
#0000006.0721.001.001.00
##0000006.0721.001.001.00

Color blindness preview

Protanopia (red-blind)
#7F90BA
Deuteranopia (green-blind)
#7085B7
Tritanopia (blue-blind)
#009B9E
Achromatopsia (no color)
#8A8A8A

Design tokens & code

CSS
--color: #4e91b8;
/* rgb */ color: rgb(78, 145, 184);
/* oklch */ color: oklch(62.8% 0.090 236.2);
Tailwind
colors: {
  custom: {
    50: '#88b1cd',
    500: '#4e91b8',
    950: '#000000',
  },
}
SCSS
$custom: #4e91b8;
$custom-light: #88b1cd;
$custom-dark: #000000;
JSON
{
  "hex": "#4e91b8",
  "rgb": {
    "r": 78,
    "g": 145,
    "b": 184
  },
  "hsl": {
    "h": 202.075,
    "s": 42.742,
    "l": 51.373
  },
  "oklch": {
    "l": 0.62847,
    "c": 0.09013,
    "h": 236.2
  },
  "luminance": 0.25331
}

Semantic roles & 50–950 ramp

primary
#4E91B8
secondary
#C8AB9A
accent
#8355D3
background
#F8FAFC
surface
#F0F5F9
border
#CBCFD2
text
#0C1013
muted
#7D7F82

Preview Lab

Preview with #4E91B8

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

Preview Lab → · Contrast checker → · Palette generator →

#4E91B8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva