#4C78BF#4C78BF

#4C78BF is a mid, vivid blue. Relative luminance 0.187; OKLCH L 57.4% C 0.120 H 259.6°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#4C78BF
RGB	rgb(76, 120, 191)
HSL	hsl(217, 47%, 52%)
HSV	hsv(217, 60%, 75%)
CMYK	cmyk(60.2%, 37.2%, 0%, 25.1%)
CIE-LAB	lab(50.37, 6.78, -41.79)
CIE-LCH	lch(50.37, 42.34, 279.21°)
OKLab	oklab(57.41% -0.0218 -0.1185)
OKLCH	oklch(57.41% 0.12 259.6)
XYZ	xyz(19.0976, 18.7294, 51.8888)
Luminance	0.1873 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C78BF #BF934C

analogous

#4CB2BF #4C78BF #594CBF

triadic

#4C78BF #BF4C78 #78BF4C

tetradic

#4C78BF #BF4CB2 #BF934C #4CBF59

square

#4C78BF #BF4CB2 #BF934C #4CBF59

split-complementary

#4C78BF #BF594C #B2BF4C

monochromatic

#26406B #365B98 #4C78BF #799ACF #A6BCDF

Accessibility & contrast

On white

4.42

#4C78BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#4C78BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C78BF

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C78BF	#FFFFFF	#000000	##000000
##4C78BF	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7EC2

Deuteranopia (green-blind)

#4B73BE

Tritanopia (blue-blind)

#008892

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4c78bf;
/* rgb */ color: rgb(76, 120, 191);
/* oklch */ color: oklch(57.4% 0.120 259.6);

Tailwind

colors: {
  custom: {
    50: '#889ed2',
    500: '#4c78bf',
    950: '#000000',
  },
}

SCSS

$custom: #4c78bf;
$custom-light: #889ed2;
$custom-dark: #000000;

JSON

{
  "hex": "#4c78bf",
  "rgb": {
    "r": 76,
    "g": 120,
    "b": 191
  },
  "hsl": {
    "h": 217.043,
    "s": 47.325,
    "l": 52.353
  },
  "oklch": {
    "l": 0.57407,
    "c": 0.12048,
    "h": 259.6
  },
  "luminance": 0.18731
}

Semantic roles & 50–950 ramp

primary

#4C78BF

secondary

#CCB99A

accent

#A451D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4C78BF

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

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