#4D78BC#4D78BC

#4D78BC is a mid, moderate blue. Relative luminance 0.186; OKLCH L 57.3% C 0.116 H 259.2°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#4D78BC
RGB	rgb(77, 120, 188)
HSL	hsl(217, 45%, 52%)
HSV	hsv(217, 59%, 74%)
CMYK	cmyk(59%, 36.2%, 0%, 26.3%)
CIE-LAB	lab(50.26, 5.97, -40.23)
CIE-LCH	lch(50.26, 40.67, 278.44°)
OKLab	oklab(57.29% -0.0217 -0.1139)
OKLCH	oklch(57.29% 0.116 259.2)
XYZ	xyz(18.8510, 18.6399, 50.1717)
Luminance	0.1864 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D78BC #BC914D

analogous

#4DAFBC #4D78BC #5A4DBC

triadic

#4D78BC #BC4D78 #78BC4D

tetradic

#4D78BC #BC4DAF #BC914D #4DBC5A

square

#4D78BC #BC4DAF #BC914D #4DBC5A

split-complementary

#4D78BC #BC5A4D #AFBC4D

monochromatic

#274068 #385C94 #4D78BC #799ACD #A6BBDD

Accessibility & contrast

On white

4.44

#4D78BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#4D78BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4D78BC

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D78BC	#FFFFFF	#000000	##000000
##4D78BC	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)

#5C7DBF

Deuteranopia (green-blind)

#4D73BB

Tritanopia (blue-blind)

#008791

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4d78bc;
/* rgb */ color: rgb(77, 120, 188);
/* oklch */ color: oklch(57.3% 0.116 259.2);

Tailwind

colors: {
  custom: {
    50: '#889ed0',
    500: '#4d78bc',
    950: '#000000',
  },
}

SCSS

$custom: #4d78bc;
$custom-light: #889ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#4d78bc",
  "rgb": {
    "r": 77,
    "g": 120,
    "b": 188
  },
  "hsl": {
    "h": 216.757,
    "s": 45.306,
    "l": 51.961
  },
  "oklch": {
    "l": 0.57288,
    "c": 0.11597,
    "h": 259.2
  },
  "luminance": 0.18642
}

Semantic roles & 50–950 ramp

primary

#4D78BC

secondary

#CBB89A

accent

#A353D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4D78BC

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

Preview Lab → · Contrast checker → · Palette generator →