#4580EF#4580EF

#4580EF is a mid, vivid blue. Relative luminance 0.229; OKLCH L 61.8% C 0.178 H 261.6°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#4580EF
RGB	rgb(69, 128, 239)
HSL	hsl(219, 84%, 60%)
HSV	hsv(219, 71%, 94%)
CMYK	cmyk(71.1%, 46.4%, 0%, 6.3%)
CIE-LAB	lab(55.00, 17.47, -61.53)
CIE-LCH	lch(55.00, 63.96, 285.85°)
OKLab	oklab(61.78% -0.0259 -0.1764)
OKLCH	oklch(61.78% 0.178 261.6)
XYZ	xyz(25.7478, 22.9328, 84.7141)
Luminance	0.2294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4580EF #EFB445

analogous

#45D5EF #4580EF #5F45EF

triadic

#4580EF #EF4580 #80EF45

tetradic

#4580EF #EF45D5 #EFB445 #45EF5F

square

#4580EF #EF45D5 #EFB445 #45EF5F

split-complementary

#4580EF #EF5F45 #D5EF45

monochromatic

#0F45AB #145CE3 #4580EF #7DA6F4 #B6CDF9

Accessibility & contrast

On white

3.76

#4580EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#4580EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4580EF

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4580EF	#FFFFFF	#000000	##000000
##4580EF	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#458CF3

Deuteranopia (green-blind)

#1B7CED

Tritanopia (blue-blind)

#009AAC

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #4580ef;
/* rgb */ color: rgb(69, 128, 239);
/* oklch */ color: oklch(61.8% 0.178 261.6);

Tailwind

colors: {
  custom: {
    50: '#8ca4f5',
    500: '#4580ef',
    950: '#000000',
  },
}

SCSS

$custom: #4580ef;
$custom-light: #8ca4f5;
$custom-dark: #000000;

JSON

{
  "hex": "#4580ef",
  "rgb": {
    "r": 69,
    "g": 128,
    "b": 239
  },
  "hsl": {
    "h": 219.176,
    "s": 84.158,
    "l": 60.392
  },
  "oklch": {
    "l": 0.61784,
    "c": 0.17832,
    "h": 261.6
  },
  "luminance": 0.22936
}

Semantic roles & 50–950 ramp

primary

#4580EF

secondary

#E8D2A7

accent

#9405E1

background

#F9FAFF

surface

#F2F3FE

border

#CCCDD6

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #4580EF

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

Preview Lab → · Contrast checker → · Palette generator →