#4591E0#4591E0

#4591E0 is a light, vivid cyan. Relative luminance 0.269; OKLCH L 64.5% C 0.141 H 251.7°. Best body text is #000000 at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#4591E0
RGB	rgb(69, 145, 224)
HSL	hsl(211, 71%, 57%)
HSV	hsv(211, 69%, 88%)
CMYK	cmyk(69.2%, 35.3%, 0%, 12.2%)
CIE-LAB	lab(58.88, 1.95, -47.00)
CIE-LCH	lch(58.88, 47.04, 272.38°)
OKLab	oklab(64.52% -0.0443 -0.1335)
OKLCH	oklch(64.52% 0.141 251.7)
XYZ	xyz(26.0292, 26.8950, 74.3260)
Luminance	0.2690 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4591E0 #E09445

analogous

#45DEE0 #4591E0 #4745E0

triadic

#4591E0 #E04591 #91E045

tetradic

#4591E0 #E045DE #E09445 #45E047

square

#4591E0 #E045DE #E09445 #45E047

split-complementary

#4591E0 #E04745 #DEE045

monochromatic

#185492 #2172C7 #4591E0 #79B0E9 #AECFF1

Accessibility & contrast

On white

3.29

#4591E0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.38

#4591E0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4591E0

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4591E0	#FFFFFF	#000000	##000000
##4591E0	1.00	3.29	6.38	6.38
#FFFFFF	3.29	1.00	21.00	21.00
#000000	6.38	21.00	1.00	1.00
##000000	6.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D96E3

Deuteranopia (green-blind)

#5787DE

Tritanopia (blue-blind)

#00A4AE

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #4591e0;
/* rgb */ color: rgb(69, 145, 224);
/* oklch */ color: oklch(64.5% 0.141 251.7);

Tailwind

colors: {
  custom: {
    50: '#8ab0ea',
    500: '#4591e0',
    950: '#000000',
  },
}

SCSS

$custom: #4591e0;
$custom-light: #8ab0ea;
$custom-dark: #000000;

JSON

{
  "hex": "#4591e0",
  "rgb": {
    "r": 69,
    "g": 145,
    "b": 224
  },
  "hsl": {
    "h": 210.581,
    "s": 71.429,
    "l": 57.451
  },
  "oklch": {
    "l": 0.6452,
    "c": 0.14068,
    "h": 251.7
  },
  "luminance": 0.26898
}

Semantic roles & 50–950 ramp

primary

#4591E0

secondary

#E0C1A1

accent

#963AEE

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4591E0

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

Preview Lab → · Contrast checker → · Palette generator →