#4078C7#4078C7

#4078C7 is a mid, vivid blue. Relative luminance 0.186; OKLCH L 57.3% C 0.136 H 257.3°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#4078C7
RGB	rgb(64, 120, 199)
HSL	hsl(215, 55%, 52%)
HSV	hsv(215, 68%, 78%)
CMYK	cmyk(67.8%, 39.7%, 0%, 22%)
CIE-LAB	lab(50.27, 7.41, -46.57)
CIE-LCH	lch(50.27, 47.15, 279.04°)
OKLab	oklab(57.32% -0.0298 -0.1327)
OKLCH	oklch(57.32% 0.136 257.3)
XYZ	xyz(19.1359, 18.6445, 56.6120)
Luminance	0.1865 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4078C7 #C78F40

analogous

#40BCC7 #4078C7 #4C40C7

triadic

#4078C7 #C74078 #78C740

tetradic

#4078C7 #C740BC #C78F40 #40C74C

square

#4078C7 #C740BC #C78F40 #40C74C

split-complementary

#4078C7 #C74C40 #BCC740

monochromatic

#20406D #2E5C9C #4078C7 #6F99D5 #9FBBE3

Accessibility & contrast

On white

4.44

#4078C7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#4078C7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4078C7

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4078C7	#FFFFFF	#000000	##000000
##4078C7	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#547ECA

Deuteranopia (green-blind)

#3F72C5

Tritanopia (blue-blind)

#008A96

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4078c7;
/* rgb */ color: rgb(64, 120, 199);
/* oklch */ color: oklch(57.3% 0.136 257.3);

Tailwind

colors: {
  custom: {
    50: '#839ed8',
    500: '#4078c7',
    950: '#000000',
  },
}

SCSS

$custom: #4078c7;
$custom-light: #839ed8;
$custom-dark: #000000;

JSON

{
  "hex": "#4078c7",
  "rgb": {
    "r": 64,
    "g": 120,
    "b": 199
  },
  "hsl": {
    "h": 215.111,
    "s": 54.656,
    "l": 51.569
  },
  "oklch": {
    "l": 0.57324,
    "c": 0.13597,
    "h": 257.3
  },
  "luminance": 0.18646
}

Semantic roles & 50–950 ramp

primary

#4078C7

secondary

#CFB694

accent

#A14ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #4078C7

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

Preview Lab → · Contrast checker → · Palette generator →