#4078C8#4078C8

#4078C8 is a mid, vivid blue. Relative luminance 0.187; OKLCH L 57.4% C 0.137 H 257.6°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#4078C8
RGB	rgb(64, 120, 200)
HSL	hsl(215, 55%, 52%)
HSV	hsv(215, 68%, 78%)
CMYK	cmyk(68%, 40%, 0%, 21.6%)
CIE-LAB	lab(50.32, 7.76, -47.05)
CIE-LCH	lch(50.32, 47.69, 279.37°)
OKLab	oklab(57.39% -0.0296 -0.1341)
OKLCH	oklch(57.39% 0.137 257.6)
XYZ	xyz(19.2524, 18.6911, 57.2255)
Luminance	0.1869 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4078C8 #C89040

analogous

#40BCC8 #4078C8 #4C40C8

triadic

#4078C8 #C84078 #78C840

tetradic

#4078C8 #C840BC #C89040 #40C84C

square

#4078C8 #C840BC #C89040 #40C84C

split-complementary

#4078C8 #C84C40 #BCC840

monochromatic

#20406E #2D5C9D #4078C8 #709AD6 #9FBBE3

Accessibility & contrast

On white

4.43

#4078C8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#4078C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4078C8

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4078C8	#FFFFFF	#000000	##000000
##4078C8	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#537FCB

Deuteranopia (green-blind)

#3E72C6

Tritanopia (blue-blind)

#008A96

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4078c8;
/* rgb */ color: rgb(64, 120, 200);
/* oklch */ color: oklch(57.4% 0.137 257.6);

Tailwind

colors: {
  custom: {
    50: '#839ed9',
    500: '#4078c8',
    950: '#000000',
  },
}

SCSS

$custom: #4078c8;
$custom-light: #839ed9;
$custom-dark: #000000;

JSON

{
  "hex": "#4078c8",
  "rgb": {
    "r": 64,
    "g": 120,
    "b": 200
  },
  "hsl": {
    "h": 215.294,
    "s": 55.285,
    "l": 51.765
  },
  "oklch": {
    "l": 0.57385,
    "c": 0.13731,
    "h": 257.6
  },
  "luminance": 0.18693
}

Semantic roles & 50–950 ramp

primary

#4078C8

secondary

#D0B794

accent

#A149DF

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4078C8

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

Preview Lab → · Contrast checker → · Palette generator →