#4591DB#4591DB

#4591DB is a light, vivid cyan. Relative luminance 0.266; OKLCH L 64.2% C 0.134 H 250.2°. Best body text is #000000 at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#4591DB
RGB	rgb(69, 145, 219)
HSL	hsl(210, 68%, 56%)
HSV	hsv(210, 68%, 86%)
CMYK	cmyk(68.5%, 33.8%, 0%, 14.1%)
CIE-LAB	lab(58.63, 0.22, -44.61)
CIE-LCH	lch(58.63, 44.61, 270.28°)
OKLab	oklab(64.24% -0.0456 -0.1265)
OKLCH	oklch(64.24% 0.134 250.2)
XYZ	xyz(25.3611, 26.6278, 70.8072)
Luminance	0.2663 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4591DB #DB8F45

analogous

#45DBDA #4591DB #4546DB

triadic

#4591DB #DB4591 #91DB45

tetradic

#4591DB #DA45DB #DB8F45 #46DB45

square

#4591DB #DA45DB #DB8F45 #46DB45

split-complementary

#4591DB #DB4546 #DBDA45

monochromatic

#1B548B #2572BE #4591DB #78AFE5 #ACCEEF

Accessibility & contrast

On white

3.32

#4591DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.33

#4591DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4591DB

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4591DB	#FFFFFF	#000000	##000000
##4591DB	1.00	3.32	6.33	6.33
#FFFFFF	3.32	1.00	21.00	21.00
#000000	6.33	21.00	1.00	1.00
##000000	6.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7095DE

Deuteranopia (green-blind)

#5B87DA

Tritanopia (blue-blind)

#00A2AC

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #4591db;
/* rgb */ color: rgb(69, 145, 219);
/* oklch */ color: oklch(64.2% 0.134 250.2);

Tailwind

colors: {
  custom: {
    50: '#89b0e6',
    500: '#4591db',
    950: '#000000',
  },
}

SCSS

$custom: #4591db;
$custom-light: #89b0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4591db",
  "rgb": {
    "r": 69,
    "g": 145,
    "b": 219
  },
  "hsl": {
    "h": 209.6,
    "s": 67.568,
    "l": 56.471
  },
  "oklch": {
    "l": 0.64243,
    "c": 0.13449,
    "h": 250.2
  },
  "luminance": 0.2663
}

Semantic roles & 50–950 ramp

primary

#4591DB

secondary

#DDBD9F

accent

#933DEA

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4591DB

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

Preview Lab → · Contrast checker → · Palette generator →