#4478CB#4478CB

#4478CB is a mid, vivid blue. Relative luminance 0.190; OKLCH L 57.7% C 0.140 H 259.4°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#4478CB
RGB	rgb(68, 120, 203)
HSL	hsl(217, 56%, 53%)
HSV	hsv(217, 67%, 80%)
CMYK	cmyk(66.5%, 40.9%, 0%, 20.4%)
CIE-LAB	lab(50.65, 9.48, -48.23)
CIE-LCH	lch(50.65, 49.15, 281.12°)
OKLab	oklab(57.74% -0.0258 -0.1375)
OKLCH	oklch(57.74% 0.14 259.4)
XYZ	xyz(19.8760, 18.9717, 59.1028)
Luminance	0.1897 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4478CB #CB9744

analogous

#44BBCB #4478CB #5344CB

triadic

#4478CB #CB4478 #78CB44

tetradic

#4478CB #CB44BB #CB9744 #44CB53

square

#4478CB #CB44BB #CB9744 #44CB53

split-complementary

#4478CB #CB5344 #BBCB44

monochromatic

#204174 #2E5BA4 #4478CB #749BD8 #A4BDE6

Accessibility & contrast

On white

4.38

#4478CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#4478CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4478CB

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4478CB	#FFFFFF	#000000	##000000
##4478CB	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#527FCE

Deuteranopia (green-blind)

#3D73C9

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4478cb;
/* rgb */ color: rgb(68, 120, 203);
/* oklch */ color: oklch(57.7% 0.140 259.4);

Tailwind

colors: {
  custom: {
    50: '#869edb',
    500: '#4478cb',
    950: '#000000',
  },
}

SCSS

$custom: #4478cb;
$custom-light: #869edb;
$custom-dark: #000000;

JSON

{
  "hex": "#4478cb",
  "rgb": {
    "r": 68,
    "g": 120,
    "b": 203
  },
  "hsl": {
    "h": 216.889,
    "s": 56.485,
    "l": 53.137
  },
  "oklch": {
    "l": 0.5774,
    "c": 0.13988,
    "h": 259.4
  },
  "luminance": 0.18974
}

Semantic roles & 50–950 ramp

primary

#4478CB

secondary

#D3BC98

accent

#A548E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4478CB

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

Preview Lab → · Contrast checker → · Palette generator →