#4C78CE#4C78CE

#4C78CE is a mid, vivid blue. Relative luminance 0.194; OKLCH L 58.3% C 0.141 H 262.4°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#4C78CE
RGB	rgb(76, 120, 206)
HSL	hsl(220, 57%, 55%)
HSV	hsv(220, 63%, 81%)
CMYK	cmyk(63.1%, 41.7%, 0%, 19.2%)
CIE-LAB	lab(51.18, 11.90, -49.08)
CIE-LCH	lch(51.18, 50.50, 283.63°)
OKLab	oklab(58.3% -0.0186 -0.1398)
OKLCH	oklch(58.3% 0.141 262.4)
XYZ	xyz(20.8336, 19.4238, 61.0318)
Luminance	0.1943 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C78CE #CEA24C

analogous

#4CB9CE #4C78CE #614CCE

triadic

#4C78CE #CE4C78 #78CE4C

tetradic

#4C78CE #CE4CB9 #CEA24C #4CCE61

square

#4C78CE #CE4CB9 #CEA24C #4CCE61

split-complementary

#4C78CE #CE614C #B9CE4C

monochromatic

#22417D #2F5AAD #4C78CE #7C9CDB #ACC0E8

Accessibility & contrast

On white

4.30

#4C78CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#4C78CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C78CE

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C78CE	#FFFFFF	#000000	##000000
##4C78CE	1.00	4.30	4.89	4.89
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5180D1

Deuteranopia (green-blind)

#3E74CC

Tritanopia (blue-blind)

#008C99

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4c78ce;
/* rgb */ color: rgb(76, 120, 206);
/* oklch */ color: oklch(58.3% 0.141 262.4);

Tailwind

colors: {
  custom: {
    50: '#8a9edd',
    500: '#4c78ce',
    950: '#000000',
  },
}

SCSS

$custom: #4c78ce;
$custom-light: #8a9edd;
$custom-dark: #000000;

JSON

{
  "hex": "#4c78ce",
  "rgb": {
    "r": 76,
    "g": 120,
    "b": 206
  },
  "hsl": {
    "h": 219.692,
    "s": 57.018,
    "l": 55.294
  },
  "oklch": {
    "l": 0.58298,
    "c": 0.14107,
    "h": 262.4
  },
  "luminance": 0.19426
}

Semantic roles & 50–950 ramp

primary

#4C78CE

secondary

#D6C4A0

accent

#AD48E0

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #4C78CE

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

Preview Lab → · Contrast checker → · Palette generator →