#4770BB#4770BB

#4770BB is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.2% C 0.126 H 261.5°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#4770BB
RGB	rgb(71, 112, 187)
HSL	hsl(219, 46%, 51%)
HSV	hsv(219, 62%, 73%)
CMYK	cmyk(62%, 40.1%, 0%, 26.7%)
CIE-LAB	lab(47.64, 9.36, -43.83)
CIE-LCH	lch(47.64, 44.81, 282.06°)
OKLab	oklab(55.16% -0.0186 -0.1246)
OKLCH	oklch(55.16% 0.126 261.5)
XYZ	xyz(17.3592, 16.5142, 49.2768)
Luminance	0.1652 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4770BB #BB9247

analogous

#47AABB #4770BB #5847BB

triadic

#4770BB #BB4770 #70BB47

tetradic

#4770BB #BB47AA #BB9247 #47BB58

square

#4770BB #BB47AA #BB9247 #47BB58

split-complementary

#4770BB #BB5847 #AABB47

monochromatic

#253B63 #355590 #4770BB #7493CC #A0B5DC

Accessibility & contrast

On white

4.88

#4770BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#4770BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4770BB

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4770BB	#FFFFFF	#000000	##FFFFFF
##4770BB	1.00	4.88	4.30	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.88	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: #4770bb;
/* rgb */ color: rgb(71, 112, 187);
/* oklch */ color: oklch(55.2% 0.126 261.5);

Tailwind

colors: {
  custom: {
    50: '#8598d0',
    500: '#4770bb',
    950: '#000000',
  },
}

SCSS

$custom: #4770bb;
$custom-light: #8598d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4770bb",
  "rgb": {
    "r": 71,
    "g": 112,
    "b": 187
  },
  "hsl": {
    "h": 218.793,
    "s": 46.032,
    "l": 50.588
  },
  "oklch": {
    "l": 0.55157,
    "c": 0.126,
    "h": 261.5
  },
  "luminance": 0.16516
}

Semantic roles & 50–950 ramp

primary

#4770BB

secondary

#C9B695

accent

#A752D6

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #4770BB

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

Preview Lab → · Contrast checker → · Palette generator →