#4E78BB#4E78BB

#4E78BB is a mid, moderate blue. Relative luminance 0.186; OKLCH L 57.3% C 0.114 H 259.4°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#4E78BB
RGB	rgb(78, 120, 187)
HSL	hsl(217, 44%, 52%)
HSV	hsv(217, 58%, 73%)
CMYK	cmyk(58.3%, 35.8%, 0%, 26.7%)
CIE-LAB	lab(50.26, 5.84, -39.65)
CIE-LCH	lch(50.26, 40.08, 278.38°)
OKLab	oklab(57.28% -0.021 -0.1122)
OKLCH	oklch(57.28% 0.114 259.4)
XYZ	xyz(18.8249, 18.6389, 49.6097)
Luminance	0.1864 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E78BB #BB914E

analogous

#4EAFBB #4E78BB #5B4EBB

triadic

#4E78BB #BB4E78 #78BB4E

tetradic

#4E78BB #BB4EAF #BB914E #4EBB5B

square

#4E78BB #BB4EAF #BB914E #4EBB5B

split-complementary

#4E78BB #BB5B4E #AFBB4E

monochromatic

#284067 #395C93 #4E78BB #7A9ACC #A6BBDD

Accessibility & contrast

On white

4.44

#4E78BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#4E78BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4E78BB

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E78BB	#FFFFFF	#000000	##000000
##4E78BB	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)

#5C7DBE

Deuteranopia (green-blind)

#4E73BA

Tritanopia (blue-blind)

#008791

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4e78bb;
/* rgb */ color: rgb(78, 120, 187);
/* oklch */ color: oklch(57.3% 0.114 259.4);

Tailwind

colors: {
  custom: {
    50: '#889ed0',
    500: '#4e78bb',
    950: '#000000',
  },
}

SCSS

$custom: #4e78bb;
$custom-light: #889ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#4e78bb",
  "rgb": {
    "r": 78,
    "g": 120,
    "b": 187
  },
  "hsl": {
    "h": 216.881,
    "s": 44.49,
    "l": 51.961
  },
  "oklch": {
    "l": 0.57283,
    "c": 0.11418,
    "h": 259.4
  },
  "luminance": 0.1864
}

Semantic roles & 50–950 ramp

primary

#4E78BB

secondary

#CAB89B

accent

#A354D4

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4E78BB

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

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