#4591B4#4591B4

#4591B4 is a light, moderate cyan. Relative luminance 0.248; OKLCH L 62.3% C 0.092 H 230.6°. Best body text is #000000 at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#4591B4
RGB	rgb(69, 145, 180)
HSL	hsl(199, 45%, 49%)
HSV	hsv(199, 62%, 71%)
CMYK	cmyk(61.7%, 19.4%, 0%, 29.4%)
CIE-LAB	lab(56.89, -12.80, -25.33)
CIE-LCH	lch(56.89, 28.38, 243.20°)
OKLab	oklab(62.3% -0.058 -0.0708)
OKLCH	oklch(62.3% 0.092 230.6)
XYZ	xyz(20.8147, 24.8092, 46.8629)
Luminance	0.2481 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4591B4 #B46845

analogous

#45B4A0 #4591B4 #455AB4

triadic

#4591B4 #B44591 #91B445

tetradic

#4591B4 #A045B4 #B46845 #5AB445

square

#4591B4 #A045B4 #B46845 #5AB445

split-complementary

#4591B4 #B4455A #B4A045

monochromatic

#234A5C #346D88 #4591B4 #6FACC8 #9BC5D9

Accessibility & contrast

On white

3.52

#4591B4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.96

#4591B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4591B4

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4591B4	#FFFFFF	#000000	##000000
##4591B4	1.00	3.52	5.96	5.96
#FFFFFF	3.52	1.00	21.00	21.00
#000000	5.96	21.00	1.00	1.00
##000000	5.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8FB6

Deuteranopia (green-blind)

#7083B4

Tritanopia (blue-blind)

#009B9C

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #4591b4;
/* rgb */ color: rgb(69, 145, 180);
/* oklch */ color: oklch(62.3% 0.092 230.6);

Tailwind

colors: {
  custom: {
    50: '#83b1ca',
    500: '#4591b4',
    950: '#000000',
  },
}

SCSS

$custom: #4591b4;
$custom-light: #83b1ca;
$custom-dark: #000000;

JSON

{
  "hex": "#4591b4",
  "rgb": {
    "r": 69,
    "g": 145,
    "b": 180
  },
  "hsl": {
    "h": 198.919,
    "s": 44.578,
    "l": 48.824
  },
  "oklch": {
    "l": 0.62296,
    "c": 0.09153,
    "h": 230.6
  },
  "luminance": 0.24811
}

Semantic roles & 50–950 ramp

primary

#4591B4

secondary

#C5A190

accent

#7C54D4

background

#F8FAFC

surface

#F0F5F8

border

#CBCFD1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #4591B4

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

Preview Lab → · Contrast checker → · Palette generator →