#4E78BC#4E78BC

#4E78BC is a mid, moderate blue. Relative luminance 0.187; OKLCH L 57.3% C 0.116 H 259.6°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#4E78BC
RGB	rgb(78, 120, 188)
HSL	hsl(217, 45%, 52%)
HSV	hsv(217, 59%, 74%)
CMYK	cmyk(58.5%, 36.2%, 0%, 26.3%)
CIE-LAB	lab(50.31, 6.17, -40.15)
CIE-LCH	lch(50.31, 40.62, 278.74°)
OKLab	oklab(57.34% -0.0208 -0.1137)
OKLCH	oklch(57.34% 0.116 259.6)
XYZ	xyz(18.9323, 18.6819, 50.1755)
Luminance	0.1868 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E78BC #BC924E

analogous

#4EAFBC #4E78BC #5B4EBC

triadic

#4E78BC #BC4E78 #78BC4E

tetradic

#4E78BC #BC4EAF #BC924E #4EBC5B

square

#4E78BC #BC4EAF #BC924E #4EBC5B

split-complementary

#4E78BC #BC5B4E #AFBC4E

monochromatic

#274068 #385B95 #4E78BC #7A9ACD #A7BCDE

Accessibility & contrast

On white

4.43

#4E78BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#4E78BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4E78BC

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E78BC	#FFFFFF	#000000	##000000
##4E78BC	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7DBF

Deuteranopia (green-blind)

#4D73BB

Tritanopia (blue-blind)

#008791

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4e78bc;
/* rgb */ color: rgb(78, 120, 188);
/* oklch */ color: oklch(57.3% 0.116 259.6);

Tailwind

colors: {
  custom: {
    50: '#889ed0',
    500: '#4e78bc',
    950: '#000000',
  },
}

SCSS

$custom: #4e78bc;
$custom-light: #889ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#4e78bc",
  "rgb": {
    "r": 78,
    "g": 120,
    "b": 188
  },
  "hsl": {
    "h": 217.091,
    "s": 45.082,
    "l": 52.157
  },
  "oklch": {
    "l": 0.5734,
    "c": 0.11555,
    "h": 259.6
  },
  "luminance": 0.18683
}

Semantic roles & 50–950 ramp

primary

#4E78BC

secondary

#CBB99B

accent

#A353D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4E78BC

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

Preview Lab → · Contrast checker → · Palette generator →