#4078D4#4078D4

#4078D4 is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.1% C 0.153 H 259.8°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#4078D4
RGB	rgb(64, 120, 212)
HSL	hsl(217, 63%, 54%)
HSV	hsv(217, 70%, 83%)
CMYK	cmyk(69.8%, 43.4%, 0%, 16.9%)
CIE-LAB	lab(51.01, 12.05, -52.79)
CIE-LCH	lch(51.01, 54.15, 282.86°)
OKLab	oklab(58.13% -0.0271 -0.1509)
OKLCH	oklch(58.13% 0.153 259.8)
XYZ	xyz(20.7102, 19.2742, 64.9034)
Luminance	0.1928 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4078D4 #D49C40

analogous

#40C2D4 #4078D4 #5240D4

triadic

#4078D4 #D44078 #78D440

tetradic

#4078D4 #D440C2 #D49C40 #40D452

square

#4078D4 #D440C2 #D49C40 #40D452

split-complementary

#4078D4 #D45240 #C2D440

monochromatic

#1C417D #275BAF #4078D4 #729BDF #A4BFEA

Accessibility & contrast

On white

4.33

#4078D4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#4078D4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4078D4

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4078D4	#FFFFFF	#000000	##000000
##4078D4	1.00	4.33	4.86	4.86
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B81D8

Deuteranopia (green-blind)

#3173D2

Tritanopia (blue-blind)

#008D9C

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4078d4;
/* rgb */ color: rgb(64, 120, 212);
/* oklch */ color: oklch(58.1% 0.153 259.8);

Tailwind

colors: {
  custom: {
    50: '#869ee2',
    500: '#4078d4',
    950: '#000000',
  },
}

SCSS

$custom: #4078d4;
$custom-light: #869ee2;
$custom-dark: #000000;

JSON

{
  "hex": "#4078d4",
  "rgb": {
    "r": 64,
    "g": 120,
    "b": 212
  },
  "hsl": {
    "h": 217.297,
    "s": 63.248,
    "l": 54.118
  },
  "oklch": {
    "l": 0.58134,
    "c": 0.15336,
    "h": 259.8
  },
  "luminance": 0.19276
}

Semantic roles & 50–950 ramp

primary

#4078D4

secondary

#D7C098

accent

#A842E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4078D4

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

Preview Lab → · Contrast checker → · Palette generator →