#4578DB#4578DB

#4578DB is a mid, vivid blue. Relative luminance 0.198; OKLCH L 58.8% C 0.161 H 262.1°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#4578DB
RGB	rgb(69, 120, 219)
HSL	hsl(220, 68%, 56%)
HSV	hsv(220, 68%, 86%)
CMYK	cmyk(68.5%, 45.2%, 0%, 14.1%)
CIE-LAB	lab(51.62, 15.30, -55.75)
CIE-LCH	lch(51.62, 57.81, 285.34°)
OKLab	oklab(58.8% -0.022 -0.1596)
OKLCH	oklch(58.8% 0.161 262.1)
XYZ	xyz(21.9524, 19.8104, 69.6710)
Luminance	0.1981 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4578DB #DBA845

analogous

#45C3DB #4578DB #5D45DB

triadic

#4578DB #DB4578 #78DB45

tetradic

#4578DB #DB45C3 #DBA845 #45DB5D

square

#4578DB #DB45C3 #DBA845 #45DB5D

split-complementary

#4578DB #DB5D45 #C3DB45

monochromatic

#1B418B #2559BE #4578DB #789DE5 #ACC2EF

Accessibility & contrast

On white

4.23

#4578DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#4578DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4578DB

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4578DB	#FFFFFF	#000000	##000000
##4578DB	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4682DF

Deuteranopia (green-blind)

#2975D9

Tritanopia (blue-blind)

#008F9F

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #4578db;
/* rgb */ color: rgb(69, 120, 219);
/* oklch */ color: oklch(58.8% 0.161 262.1);

Tailwind

colors: {
  custom: {
    50: '#899ee7',
    500: '#4578db',
    950: '#000000',
  },
}

SCSS

$custom: #4578db;
$custom-light: #899ee7;
$custom-dark: #000000;

JSON

{
  "hex": "#4578db",
  "rgb": {
    "r": 69,
    "g": 120,
    "b": 219
  },
  "hsl": {
    "h": 219.6,
    "s": 67.568,
    "l": 56.471
  },
  "oklch": {
    "l": 0.58798,
    "c": 0.16108,
    "h": 262.1
  },
  "luminance": 0.19813
}

Semantic roles & 50–950 ramp

primary

#4578DB

secondary

#DDC89F

accent

#B03DEA

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4578DB

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

Preview Lab → · Contrast checker → · Palette generator →