#4F70BB#4F70BB

#4F70BB is a mid, vivid blue. Relative luminance 0.168; OKLCH L 55.6% C 0.123 H 264.8°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#4F70BB
RGB	rgb(79, 112, 187)
HSL	hsl(222, 44%, 52%)
HSV	hsv(222, 58%, 73%)
CMYK	cmyk(57.8%, 40.1%, 0%, 26.7%)
CIE-LAB	lab(48.05, 10.96, -43.15)
CIE-LCH	lch(48.05, 44.52, 284.25°)
OKLab	oklab(55.59% -0.0112 -0.1225)
OKLCH	oklch(55.59% 0.123 264.8)
XYZ	xyz(17.9852, 16.8370, 49.3062)
Luminance	0.1684 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F70BB #BB9A4F

analogous

#4FA6BB #4F70BB #644FBB

triadic

#4F70BB #BB4F70 #70BB4F

tetradic

#4F70BB #BB4FA6 #BB9A4F #4FBB64

square

#4F70BB #BB4FA6 #BB9A4F #4FBB64

split-complementary

#4F70BB #BB644F #A6BB4F

monochromatic

#283B68 #395594 #4F70BB #7B94CC #A7B8DD

Accessibility & contrast

On white

4.81

#4F70BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#4F70BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F70BB

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F70BB	#FFFFFF	#000000	##FFFFFF
##4F70BB	1.00	4.81	4.37	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5077BE

Deuteranopia (green-blind)

#426EB9

Tritanopia (blue-blind)

#00818C

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #4f70bb;
/* rgb */ color: rgb(79, 112, 187);
/* oklch */ color: oklch(55.6% 0.123 264.8);

Tailwind

colors: {
  custom: {
    50: '#8998d0',
    500: '#4f70bb',
    950: '#000000',
  },
}

SCSS

$custom: #4f70bb;
$custom-light: #8998d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f70bb",
  "rgb": {
    "r": 79,
    "g": 112,
    "b": 187
  },
  "hsl": {
    "h": 221.667,
    "s": 44.262,
    "l": 52.157
  },
  "oklch": {
    "l": 0.55586,
    "c": 0.123,
    "h": 264.8
  },
  "luminance": 0.16838
}

Semantic roles & 50–950 ramp

primary

#4F70BB

secondary

#CABC9B

accent

#AD54D4

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #4F70BB

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

Preview Lab → · Contrast checker → · Palette generator →