#4A78BB#4A78BB

#4A78BB is a mid, moderate blue. Relative luminance 0.185; OKLCH L 57.1% C 0.116 H 257.8°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#4A78BB
RGB	rgb(74, 120, 187)
HSL	hsl(216, 45%, 51%)
HSV	hsv(216, 60%, 73%)
CMYK	cmyk(60.4%, 35.8%, 0%, 26.7%)
CIE-LAB	lab(50.07, 5.03, -39.97)
CIE-LCH	lch(50.07, 40.29, 277.17°)
OKLab	oklab(57.08% -0.0246 -0.1132)
OKLCH	oklch(57.08% 0.116 257.8)
XYZ	xyz(18.5070, 18.4750, 49.5948)
Luminance	0.1848 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4A78BB #BB8D4A

analogous

#4AB1BB #4A78BB #544ABB

triadic

#4A78BB #BB4A78 #78BB4A

tetradic

#4A78BB #BB4AB1 #BB8D4A #4ABB54

square

#4A78BB #BB4AB1 #BB8D4A #4ABB54

split-complementary

#4A78BB #BB544A #B1BB4A

monochromatic

#263F65 #375B91 #4A78BB #7699CC #A3BADC

Accessibility & contrast

On white

4.47

#4A78BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#4A78BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4A78BB

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4A78BB	#FFFFFF	#000000	##000000
##4A78BB	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7DBE

Deuteranopia (green-blind)

#4D72BA

Tritanopia (blue-blind)

#008791

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4a78bb;
/* rgb */ color: rgb(74, 120, 187);
/* oklch */ color: oklch(57.1% 0.116 257.8);

Tailwind

colors: {
  custom: {
    50: '#869ed0',
    500: '#4a78bb',
    950: '#000000',
  },
}

SCSS

$custom: #4a78bb;
$custom-light: #869ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#4a78bb",
  "rgb": {
    "r": 74,
    "g": 120,
    "b": 187
  },
  "hsl": {
    "h": 215.575,
    "s": 45.382,
    "l": 51.176
  },
  "oklch": {
    "l": 0.57079,
    "c": 0.11585,
    "h": 257.8
  },
  "luminance": 0.18477
}

Semantic roles & 50–950 ramp

primary

#4A78BB

secondary

#C9B597

accent

#A053D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4A78BB

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

Preview Lab → · Contrast checker → · Palette generator →