#4F75CB#4F75CB

#4F75CB is a mid, vivid blue. Relative luminance 0.187; OKLCH L 57.6% C 0.139 H 264.5°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#4F75CB
RGB	rgb(79, 117, 203)
HSL	hsl(222, 54%, 55%)
HSV	hsv(222, 61%, 80%)
CMYK	cmyk(61.1%, 42.4%, 0%, 20.4%)
CIE-LAB	lab(50.33, 13.28, -48.72)
CIE-LCH	lch(50.33, 50.49, 285.25°)
OKLab	oklab(57.63% -0.0134 -0.1388)
OKLCH	oklch(57.63% 0.139 264.5)
XYZ	xyz(20.3615, 18.6949, 59.0238)
Luminance	0.1870 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F75CB #CBA54F

analogous

#4FB3CB #4F75CB #674FCB

triadic

#4F75CB #CB4F75 #75CB4F

tetradic

#4F75CB #CB4FB3 #CBA54F #4FCB67

square

#4F75CB #CB4FB3 #CBA54F #4FCB67

split-complementary

#4F75CB #CB674F #B3CB4F

monochromatic

#243F7B #3257AA #4F75CB #7E9AD9 #ADBFE7

Accessibility & contrast

On white

4.43

#4F75CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#4F75CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F75CB

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F75CB	#FFFFFF	#000000	##000000
##4F75CB	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E7ECE

Deuteranopia (green-blind)

#3C72C9

Tritanopia (blue-blind)

#008896

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4f75cb;
/* rgb */ color: rgb(79, 117, 203);
/* oklch */ color: oklch(57.6% 0.139 264.5);

Tailwind

colors: {
  custom: {
    50: '#8b9cdb',
    500: '#4f75cb',
    950: '#000000',
  },
}

SCSS

$custom: #4f75cb;
$custom-light: #8b9cdb;
$custom-dark: #000000;

JSON

{
  "hex": "#4f75cb",
  "rgb": {
    "r": 79,
    "g": 117,
    "b": 203
  },
  "hsl": {
    "h": 221.613,
    "s": 54.386,
    "l": 55.294
  },
  "oklch": {
    "l": 0.57627,
    "c": 0.1394,
    "h": 264.5
  },
  "luminance": 0.18697
}

Semantic roles & 50–950 ramp

primary

#4F75CB

secondary

#D5C5A1

accent

#B04ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #4F75CB

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

Preview Lab → · Contrast checker → · Palette generator →