#4D91BB#4D91BB

#4D91BB is a light, moderate cyan. Relative luminance 0.254; OKLCH L 62.9% C 0.094 H 237.9°. Best body text is #000000 at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#4D91BB
RGB	rgb(77, 145, 187)
HSL	hsl(203, 45%, 52%)
HSV	hsv(203, 59%, 73%)
CMYK	cmyk(58.8%, 22.5%, 0%, 26.7%)
CIE-LAB	lab(57.48, -9.01, -28.38)
CIE-LCH	lch(57.48, 29.77, 252.38°)
OKLab	oklab(62.94% -0.0499 -0.0794)
OKLCH	oklch(62.94% 0.094 237.9)
XYZ	xyz(22.1522, 25.4144, 50.7421)
Luminance	0.2542 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D91BB #BB774D

analogous

#4DBBAE #4D91BB #4D5ABB

triadic

#4D91BB #BB4D91 #91BB4D

tetradic

#4D91BB #AE4DBB #BB774D #5ABB4D

square

#4D91BB #AE4DBB #BB774D #5ABB4D

split-complementary

#4D91BB #BB4D5A #BBAE4D

monochromatic

#274E66 #387093 #4D91BB #79ACCC #A6C8DD

Accessibility & contrast

On white

3.45

#4D91BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.08

#4D91BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4D91BB

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D91BB	#FFFFFF	#000000	##000000
##4D91BB	1.00	3.45	6.08	6.08
#FFFFFF	3.45	1.00	21.00	21.00
#000000	6.08	21.00	1.00	1.00
##000000	6.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E90BD

Deuteranopia (green-blind)

#6F85BA

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #4d91bb;
/* rgb */ color: rgb(77, 145, 187);
/* oklch */ color: oklch(62.9% 0.094 237.9);

Tailwind

colors: {
  custom: {
    50: '#88b1cf',
    500: '#4d91bb',
    950: '#000000',
  },
}

SCSS

$custom: #4d91bb;
$custom-light: #88b1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4d91bb",
  "rgb": {
    "r": 77,
    "g": 145,
    "b": 187
  },
  "hsl": {
    "h": 202.909,
    "s": 44.715,
    "l": 51.765
  },
  "oklch": {
    "l": 0.62941,
    "c": 0.09376,
    "h": 237.9
  },
  "luminance": 0.25416
}

Semantic roles & 50–950 ramp

primary

#4D91BB

secondary

#CAAC9A

accent

#8553D4

background

#F8FAFC

surface

#F0F5F9

border

#CBCFD2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4D91BB

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

Preview Lab → · Contrast checker → · Palette generator →