#4870BB#4870BB

#4870BB is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.2% C 0.126 H 261.9°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#4870BB
RGB	rgb(72, 112, 187)
HSL	hsl(219, 46%, 51%)
HSV	hsv(219, 61%, 73%)
CMYK	cmyk(61.5%, 40.1%, 0%, 26.7%)
CIE-LAB	lab(47.69, 9.56, -43.74)
CIE-LCH	lch(47.69, 44.78, 282.32°)
OKLab	oklab(55.21% -0.0177 -0.1244)
OKLCH	oklch(55.21% 0.126 261.9)
XYZ	xyz(17.4332, 16.5524, 49.2803)
Luminance	0.1655 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4870BB #BB9348

analogous

#48AABB #4870BB #5948BB

triadic

#4870BB #BB4870 #70BB48

tetradic

#4870BB #BB48AA #BB9348 #48BB59

square

#4870BB #BB48AA #BB9348 #48BB59

split-complementary

#4870BB #BB5948 #AABB48

monochromatic

#253B64 #365590 #4870BB #7593CC #A1B6DC

Accessibility & contrast

On white

4.87

#4870BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#4870BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4870BB

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4870BB	#FFFFFF	#000000	##FFFFFF
##4870BB	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F77BE

Deuteranopia (green-blind)

#3F6CB9

Tritanopia (blue-blind)

#00818C

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #4870bb;
/* rgb */ color: rgb(72, 112, 187);
/* oklch */ color: oklch(55.2% 0.126 261.9);

Tailwind

colors: {
  custom: {
    50: '#8598d0',
    500: '#4870bb',
    950: '#000000',
  },
}

SCSS

$custom: #4870bb;
$custom-light: #8598d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4870bb",
  "rgb": {
    "r": 72,
    "g": 112,
    "b": 187
  },
  "hsl": {
    "h": 219.13,
    "s": 45.817,
    "l": 50.784
  },
  "oklch": {
    "l": 0.55208,
    "c": 0.12562,
    "h": 261.9
  },
  "luminance": 0.16554
}

Semantic roles & 50–950 ramp

primary

#4870BB

secondary

#C9B796

accent

#A852D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #4870BB

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

Preview Lab → · Contrast checker → · Palette generator →