#4078D0#4078D0

#4078D0 is a mid, vivid blue. Relative luminance 0.191; OKLCH L 57.9% C 0.148 H 259.1°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#4078D0
RGB	rgb(64, 120, 208)
HSL	hsl(217, 61%, 53%)
HSV	hsv(217, 69%, 82%)
CMYK	cmyk(69.2%, 42.3%, 0%, 18.4%)
CIE-LAB	lab(50.77, 10.62, -50.89)
CIE-LCH	lch(50.77, 51.99, 281.79°)
OKLab	oklab(57.88% -0.0279 -0.1454)
OKLCH	oklch(57.88% 0.148 259.1)
XYZ	xyz(20.2119, 19.0749, 62.2789)
Luminance	0.1908 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4078D0 #D09840

analogous

#40C0D0 #4078D0 #5040D0

triadic

#4078D0 #D04078 #78D040

tetradic

#4078D0 #D040C0 #D09840 #40D050

square

#4078D0 #D040C0 #D09840 #40D050

split-complementary

#4078D0 #D05040 #C0D040

monochromatic

#1E4178 #2A5BA9 #4078D0 #719BDC #A2BDE8

Accessibility & contrast

On white

4.36

#4078D0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#4078D0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4078D0

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4078D0	#FFFFFF	#000000	##000000
##4078D0	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E80D3

Deuteranopia (green-blind)

#3673CE

Tritanopia (blue-blind)

#008C9A

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4078d0;
/* rgb */ color: rgb(64, 120, 208);
/* oklch */ color: oklch(57.9% 0.148 259.1);

Tailwind

colors: {
  custom: {
    50: '#859edf',
    500: '#4078d0',
    950: '#000000',
  },
}

SCSS

$custom: #4078d0;
$custom-light: #859edf;
$custom-dark: #000000;

JSON

{
  "hex": "#4078d0",
  "rgb": {
    "r": 64,
    "g": 120,
    "b": 208
  },
  "hsl": {
    "h": 216.667,
    "s": 60.504,
    "l": 53.333
  },
  "oklch": {
    "l": 0.5788,
    "c": 0.14801,
    "h": 259.1
  },
  "luminance": 0.19077
}

Semantic roles & 50–950 ramp

primary

#4078D0

secondary

#D5BD97

accent

#A644E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4078D0

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

Preview Lab → · Contrast checker → · Palette generator →