#4B78DA#4B78DA

#4B78DA is a mid, vivid blue. Relative luminance 0.200; OKLCH L 59.0% C 0.158 H 263.7°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#4B78DA
RGB	rgb(75, 120, 218)
HSL	hsl(221, 66%, 57%)
HSV	hsv(221, 66%, 85%)
CMYK	cmyk(65.6%, 45%, 0%, 14.5%)
CIE-LAB	lab(51.82, 15.89, -54.85)
CIE-LCH	lch(51.82, 57.11, 286.16°)
OKLab	oklab(59.01% -0.0173 -0.1568)
OKLCH	oklch(59.01% 0.158 263.7)
XYZ	xyz(22.2686, 19.9886, 69.0007)
Luminance	0.1999 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B78DA #DAAD4B

analogous

#4BC0DA #4B78DA #664BDA

triadic

#4B78DA #DA4B78 #78DA4B

tetradic

#4B78DA #DA4BC0 #DAAD4B #4BDA66

square

#4B78DA #DA4BC0 #DAAD4B #4BDA66

split-complementary

#4B78DA #DA664B #C0DA4B

monochromatic

#1D408E #2858C0 #4B78DA #7E9EE4 #B1C4EF

Accessibility & contrast

On white

4.20

#4B78DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#4B78DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B78DA

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B78DA	#FFFFFF	#000000	##000000
##4B78DA	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4883DE

Deuteranopia (green-blind)

#2E75D8

Tritanopia (blue-blind)

#008F9E

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #4b78da;
/* rgb */ color: rgb(75, 120, 218);
/* oklch */ color: oklch(59.0% 0.158 263.7);

Tailwind

colors: {
  custom: {
    50: '#8b9ee6',
    500: '#4b78da',
    950: '#000000',
  },
}

SCSS

$custom: #4b78da;
$custom-light: #8b9ee6;
$custom-dark: #000000;

JSON

{
  "hex": "#4b78da",
  "rgb": {
    "r": 75,
    "g": 120,
    "b": 218
  },
  "hsl": {
    "h": 221.119,
    "s": 65.899,
    "l": 57.451
  },
  "oklch": {
    "l": 0.59006,
    "c": 0.15776,
    "h": 263.7
  },
  "luminance": 0.19991
}

Semantic roles & 50–950 ramp

primary

#4B78DA

secondary

#DDCBA4

accent

#B33FE9

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4B78DA

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

Preview Lab → · Contrast checker → · Palette generator →