#4C70BB#4C70BB

#4C70BB is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.4% C 0.124 H 263.5°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#4C70BB
RGB	rgb(76, 112, 187)
HSL	hsl(221, 45%, 52%)
HSV	hsv(221, 59%, 73%)
CMYK	cmyk(59.4%, 40.1%, 0%, 26.7%)
CIE-LAB	lab(47.89, 10.34, -43.41)
CIE-LCH	lch(47.89, 44.62, 283.40°)
OKLab	oklab(55.42% -0.014 -0.1233)
OKLCH	oklch(55.42% 0.124 263.5)
XYZ	xyz(17.7412, 16.7112, 49.2947)
Luminance	0.1671 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C70BB #BB974C

analogous

#4CA7BB #4C70BB #604CBB

triadic

#4C70BB #BB4C70 #70BB4C

tetradic

#4C70BB #BB4CA7 #BB974C #4CBB60

square

#4C70BB #BB4CA7 #BB974C #4CBB60

split-complementary

#4C70BB #BB604C #A7BB4C

monochromatic

#273B66 #385592 #4C70BB #7893CC #A5B7DD

Accessibility & contrast

On white

4.84

#4C70BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#4C70BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C70BB

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C70BB	#FFFFFF	#000000	##FFFFFF
##4C70BB	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5077BE

Deuteranopia (green-blind)

#416DB9

Tritanopia (blue-blind)

#00818C

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #4c70bb;
/* rgb */ color: rgb(76, 112, 187);
/* oklch */ color: oklch(55.4% 0.124 263.5);

Tailwind

colors: {
  custom: {
    50: '#8798d0',
    500: '#4c70bb',
    950: '#000000',
  },
}

SCSS

$custom: #4c70bb;
$custom-light: #8798d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4c70bb",
  "rgb": {
    "r": 76,
    "g": 112,
    "b": 187
  },
  "hsl": {
    "h": 220.541,
    "s": 44.939,
    "l": 51.569
  },
  "oklch": {
    "l": 0.5542,
    "c": 0.12411,
    "h": 263.5
  },
  "luminance": 0.16713
}

Semantic roles & 50–950 ramp

primary

#4C70BB

secondary

#CABA99

accent

#AB53D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #4C70BB

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

Preview Lab → · Contrast checker → · Palette generator →