#4078E8#4078E8

#4078E8 is a mid, vivid blue. Relative luminance 0.203; OKLCH L 59.5% C 0.180 H 262.4°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#4078E8
RGB	rgb(64, 120, 232)
HSL	hsl(220, 79%, 58%)
HSV	hsv(220, 72%, 91%)
CMYK	cmyk(72.4%, 48.3%, 0%, 9%)
CIE-LAB	lab(52.23, 19.25, -62.10)
CIE-LCH	lch(52.23, 65.02, 287.22°)
OKLab	oklab(59.47% -0.0239 -0.1783)
OKLCH	oklch(59.47% 0.18 262.4)
XYZ	xyz(23.3911, 20.3466, 79.0228)
Luminance	0.2035 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4078E8 #E8B040

analogous

#40CCE8 #4078E8 #5C40E8

triadic

#4078E8 #E84078 #78E840

tetradic

#4078E8 #E840CC #E8B040 #40E85C

square

#4078E8 #E840CC #E8B040 #40E85C

split-complementary

#4078E8 #E85C40 #CCE840

monochromatic

#13409B #1957D2 #4078E8 #779FEF #ADC5F5

Accessibility & contrast

On white

4.14

#4078E8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#4078E8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4078E8

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4078E8	#FFFFFF	#000000	##000000
##4078E8	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3885EC

Deuteranopia (green-blind)

#0075E6

Tritanopia (blue-blind)

#0093A5

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #4078e8;
/* rgb */ color: rgb(64, 120, 232);
/* oklch */ color: oklch(59.5% 0.180 262.4);

Tailwind

colors: {
  custom: {
    50: '#899ef0',
    500: '#4078e8',
    950: '#000000',
  },
}

SCSS

$custom: #4078e8;
$custom-light: #899ef0;
$custom-dark: #000000;

JSON

{
  "hex": "#4078e8",
  "rgb": {
    "r": 64,
    "g": 120,
    "b": 232
  },
  "hsl": {
    "h": 220,
    "s": 78.505,
    "l": 58.039
  },
  "oklch": {
    "l": 0.59465,
    "c": 0.17993,
    "h": 262.4
  },
  "luminance": 0.20349
}

Semantic roles & 50–950 ramp

primary

#4078E8

secondary

#E3CDA0

accent

#B433F5

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #4078E8

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

Preview Lab → · Contrast checker → · Palette generator →