#4F78CE#4F78CE

#4F78CE is a mid, vivid blue. Relative luminance 0.196; OKLCH L 58.4% C 0.140 H 263.5°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#4F78CE
RGB	rgb(79, 120, 206)
HSL	hsl(221, 56%, 56%)
HSV	hsv(221, 62%, 81%)
CMYK	cmyk(61.7%, 41.7%, 0%, 19.2%)
CIE-LAB	lab(51.32, 12.45, -48.84)
CIE-LCH	lch(51.32, 50.40, 284.31°)
OKLab	oklab(58.45% -0.0159 -0.1391)
OKLCH	oklch(58.45% 0.14 263.5)
XYZ	xyz(21.0776, 19.5496, 61.0432)
Luminance	0.1955 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F78CE #CEA54F

analogous

#4FB7CE #4F78CE #654FCE

triadic

#4F78CE #CE4F78 #78CE4F

tetradic

#4F78CE #CE4FB7 #CEA54F #4FCE65

square

#4F78CE #CE4FB7 #CEA54F #4FCE65

split-complementary

#4F78CE #CE654F #B7CE4F

monochromatic

#23417F #315AAF #4F78CE #7F9DDB #AFC1E9

Accessibility & contrast

On white

4.28

#4F78CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#4F78CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F78CE

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F78CE	#FFFFFF	#000000	##000000
##4F78CE	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5181D1

Deuteranopia (green-blind)

#3F75CC

Tritanopia (blue-blind)

#008B99

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4f78ce;
/* rgb */ color: rgb(79, 120, 206);
/* oklch */ color: oklch(58.4% 0.140 263.5);

Tailwind

colors: {
  custom: {
    50: '#8b9edd',
    500: '#4f78ce',
    950: '#000000',
  },
}

SCSS

$custom: #4f78ce;
$custom-light: #8b9edd;
$custom-dark: #000000;

JSON

{
  "hex": "#4f78ce",
  "rgb": {
    "r": 79,
    "g": 120,
    "b": 206
  },
  "hsl": {
    "h": 220.63,
    "s": 56.444,
    "l": 55.882
  },
  "oklch": {
    "l": 0.58449,
    "c": 0.13999,
    "h": 263.5
  },
  "luminance": 0.19551
}

Semantic roles & 50–950 ramp

primary

#4F78CE

secondary

#D7C6A2

accent

#AF48E0

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #4F78CE

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

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