#4D75CB#4D75CB

#4D75CB is a mid, vivid blue. Relative luminance 0.186; OKLCH L 57.5% C 0.140 H 263.8°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#4D75CB
RGB	rgb(77, 117, 203)
HSL	hsl(221, 55%, 55%)
HSV	hsv(221, 62%, 80%)
CMYK	cmyk(62.1%, 42.4%, 0%, 20.4%)
CIE-LAB	lab(50.23, 12.90, -48.88)
CIE-LCH	lch(50.23, 50.56, 284.79°)
OKLab	oklab(57.52% -0.0152 -0.1393)
OKLCH	oklch(57.52% 0.14 263.8)
XYZ	xyz(20.1976, 18.6104, 59.0161)
Luminance	0.1861 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D75CB #CBA34D

analogous

#4DB4CB #4D75CB #644DCB

triadic

#4D75CB #CB4D75 #75CB4D

tetradic

#4D75CB #CB4DB4 #CBA34D #4DCB64

square

#4D75CB #CB4DB4 #CBA34D #4DCB64

split-complementary

#4D75CB #CB644D #B4CB4D

monochromatic

#243F7A #3158A9 #4D75CB #7C9AD9 #ACBEE7

Accessibility & contrast

On white

4.45

#4D75CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#4D75CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4D75CB

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D75CB	#FFFFFF	#000000	##000000
##4D75CB	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E7ECE

Deuteranopia (green-blind)

#3B72C9

Tritanopia (blue-blind)

#008896

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4d75cb;
/* rgb */ color: rgb(77, 117, 203);
/* oklch */ color: oklch(57.5% 0.140 263.8);

Tailwind

colors: {
  custom: {
    50: '#8a9cdb',
    500: '#4d75cb',
    950: '#000000',
  },
}

SCSS

$custom: #4d75cb;
$custom-light: #8a9cdb;
$custom-dark: #000000;

JSON

{
  "hex": "#4d75cb",
  "rgb": {
    "r": 77,
    "g": 117,
    "b": 203
  },
  "hsl": {
    "h": 220.952,
    "s": 54.783,
    "l": 54.902
  },
  "oklch": {
    "l": 0.57523,
    "c": 0.14011,
    "h": 263.8
  },
  "luminance": 0.18612
}

Semantic roles & 50–950 ramp

primary

#4D75CB

secondary

#D4C49F

accent

#AF4ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #4D75CB

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

Preview Lab → · Contrast checker → · Palette generator →