#4591BB#4591BB

#4591BB is a light, moderate cyan. Relative luminance 0.251; OKLCH L 62.6% C 0.098 H 235.5°. Best body text is #000000 at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#4591BB
RGB	rgb(69, 145, 187)
HSL	hsl(201, 46%, 50%)
HSV	hsv(201, 63%, 73%)
CMYK	cmyk(63.1%, 22.5%, 0%, 26.7%)
CIE-LAB	lab(57.17, -10.54, -28.87)
CIE-LCH	lch(57.17, 30.73, 249.94°)
OKLab	oklab(62.62% -0.0555 -0.0809)
OKLCH	oklch(62.62% 0.098 235.5)
XYZ	xyz(21.5458, 25.1017, 50.7137)
Luminance	0.2510 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4591BB #BB6F45

analogous

#45BBAA #4591BB #4556BB

triadic

#4591BB #BB4591 #91BB45

tetradic

#4591BB #AA45BB #BB6F45 #56BB45

square

#4591BB #AA45BB #BB6F45 #56BB45

split-complementary

#4591BB #BB4556 #BBAA45

monochromatic

#244C62 #346E8F #4591BB #72ACCB #9FC6DC

Accessibility & contrast

On white

3.49

#4591BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.02

#4591BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4591BB

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4591BB	#FFFFFF	#000000	##000000
##4591BB	1.00	3.49	6.02	6.02
#FFFFFF	3.49	1.00	21.00	21.00
#000000	6.02	21.00	1.00	1.00
##000000	6.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D90BD

Deuteranopia (green-blind)

#6D84BA

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4591bb;
/* rgb */ color: rgb(69, 145, 187);
/* oklch */ color: oklch(62.6% 0.098 235.5);

Tailwind

colors: {
  custom: {
    50: '#84b1cf',
    500: '#4591bb',
    950: '#000000',
  },
}

SCSS

$custom: #4591bb;
$custom-light: #84b1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4591bb",
  "rgb": {
    "r": 69,
    "g": 145,
    "b": 187
  },
  "hsl": {
    "h": 201.356,
    "s": 46.457,
    "l": 50.196
  },
  "oklch": {
    "l": 0.62617,
    "c": 0.09812,
    "h": 235.5
  },
  "luminance": 0.25104
}

Semantic roles & 50–950 ramp

primary

#4591BB

secondary

#C8A694

accent

#8152D6

background

#F8FAFC

surface

#F0F5F9

border

#CBCFD2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4591BB

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

Preview Lab → · Contrast checker → · Palette generator →