#4581DF#4581DF

#4581DF is a mid, vivid blue. Relative luminance 0.223; OKLCH L 61.0% C 0.156 H 259.1°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#4581DF
RGB	rgb(69, 129, 223)
HSL	hsl(217, 71%, 57%)
HSV	hsv(217, 69%, 87%)
CMYK	cmyk(69.1%, 42.2%, 0%, 12.5%)
CIE-LAB	lab(54.33, 11.18, -53.66)
CIE-LCH	lch(54.33, 54.82, 281.77°)
OKLab	oklab(60.97% -0.0295 -0.1533)
OKLCH	oklch(60.97% 0.156 259.1)
XYZ	xyz(23.6190, 22.2910, 72.8556)
Luminance	0.2229 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4581DF #DFA345

analogous

#45CEDF #4581DF #5645DF

triadic

#4581DF #DF4581 #81DF45

tetradic

#4581DF #DF45CE #DFA345 #45DF56

square

#4581DF #DF45CE #DFA345 #45DF56

split-complementary

#4581DF #DF5645 #CEDF45

monochromatic

#194891 #2261C5 #4581DF #79A4E8 #ADC8F1

Accessibility & contrast

On white

3.85

#4581DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#4581DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4581DF

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4581DF	#FFFFFF	#000000	##000000
##4581DF	1.00	3.85	5.46	5.46
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#548AE3

Deuteranopia (green-blind)

#3A7BDD

Tritanopia (blue-blind)

#0097A5

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4581df;
/* rgb */ color: rgb(69, 129, 223);
/* oklch */ color: oklch(61.0% 0.156 259.1);

Tailwind

colors: {
  custom: {
    50: '#89a5e9',
    500: '#4581df',
    950: '#000000',
  },
}

SCSS

$custom: #4581df;
$custom-light: #89a5e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4581df",
  "rgb": {
    "r": 69,
    "g": 129,
    "b": 223
  },
  "hsl": {
    "h": 216.623,
    "s": 70.642,
    "l": 57.255
  },
  "oklch": {
    "l": 0.60965,
    "c": 0.15611,
    "h": 259.1
  },
  "luminance": 0.22293
}

Semantic roles & 50–950 ramp

primary

#4581DF

secondary

#DFC7A1

accent

#A83AED

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4581DF

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

Preview Lab → · Contrast checker → · Palette generator →