#4591E3#4591E3

#4591E3 is a light, vivid cyan. Relative luminance 0.271; OKLCH L 64.7% C 0.144 H 252.5°. Best body text is #000000 at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#4591E3
RGB	rgb(69, 145, 227)
HSL	hsl(211, 74%, 58%)
HSV	hsv(211, 70%, 89%)
CMYK	cmyk(69.6%, 36.1%, 0%, 11%)
CIE-LAB	lab(59.03, 2.99, -48.43)
CIE-LCH	lch(59.03, 48.52, 273.54°)
OKLab	oklab(64.69% -0.0435 -0.1377)
OKLCH	oklch(64.69% 0.144 252.5)
XYZ	xyz(26.4396, 27.0592, 76.4877)
Luminance	0.2706 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4591E3 #E39745

analogous

#45E0E3 #4591E3 #4845E3

triadic

#4591E3 #E34591 #91E345

tetradic

#4591E3 #E345E0 #E39745 #45E348

square

#4591E3 #E345E0 #E39745 #45E348

split-complementary

#4591E3 #E34845 #E0E345

monochromatic

#175497 #1F72CC #4591E3 #7AB0EB #AFD0F3

Accessibility & contrast

On white

3.27

#4591E3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.41

#4591E3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4591E3

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4591E3	#FFFFFF	#000000	##000000
##4591E3	1.00	3.27	6.41	6.41
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.41	21.00	1.00	1.00
##000000	6.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C96E6

Deuteranopia (green-blind)

#5587E1

Tritanopia (blue-blind)

#00A4AF

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #4591e3;
/* rgb */ color: rgb(69, 145, 227);
/* oklch */ color: oklch(64.7% 0.144 252.5);

Tailwind

colors: {
  custom: {
    50: '#8ab0ec',
    500: '#4591e3',
    950: '#000000',
  },
}

SCSS

$custom: #4591e3;
$custom-light: #8ab0ec;
$custom-dark: #000000;

JSON

{
  "hex": "#4591e3",
  "rgb": {
    "r": 69,
    "g": 145,
    "b": 227
  },
  "hsl": {
    "h": 211.139,
    "s": 73.832,
    "l": 58.039
  },
  "oklch": {
    "l": 0.64688,
    "c": 0.14442,
    "h": 252.5
  },
  "luminance": 0.27062
}

Semantic roles & 50–950 ramp

primary

#4591E3

secondary

#E1C3A2

accent

#9737F0

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4591E3

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

Preview Lab → · Contrast checker → · Palette generator →