#4D71CB#4D71CB

#4D71CB is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.7% C 0.145 H 265.6°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#4D71CB
RGB	rgb(77, 113, 203)
HSL	hsl(223, 55%, 55%)
HSV	hsv(223, 62%, 80%)
CMYK	cmyk(62.1%, 44.3%, 0%, 20.4%)
CIE-LAB	lab(49.13, 15.38, -50.64)
CIE-LCH	lch(49.13, 52.92, 286.90°)
OKLab	oklab(56.68% -0.0111 -0.1445)
OKLCH	oklch(56.68% 0.145 265.6)
XYZ	xyz(19.7415, 17.6981, 58.8641)
Luminance	0.1770 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D71CB #CBA74D

analogous

#4DB0CB #4D71CB #684DCB

triadic

#4D71CB #CB4D71 #71CB4D

tetradic

#4D71CB #CB4DB0 #CBA74D #4DCB68

square

#4D71CB #CB4DB0 #CBA74D #4DCB68

split-complementary

#4D71CB #CB684D #B0CB4D

monochromatic

#243C7A #3154A9 #4D71CB #7C97D9 #ACBDE7

Accessibility & contrast

On white

4.63

#4D71CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#4D71CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4D71CB

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D71CB	#FFFFFF	#000000	##FFFFFF
##4D71CB	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#477BCE

Deuteranopia (green-blind)

#336FC9

Tritanopia (blue-blind)

#008594

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4d71cb;
/* rgb */ color: rgb(77, 113, 203);
/* oklch */ color: oklch(56.7% 0.145 265.6);

Tailwind

colors: {
  custom: {
    50: '#8a99db',
    500: '#4d71cb',
    950: '#000000',
  },
}

SCSS

$custom: #4d71cb;
$custom-light: #8a99db;
$custom-dark: #000000;

JSON

{
  "hex": "#4d71cb",
  "rgb": {
    "r": 77,
    "g": 113,
    "b": 203
  },
  "hsl": {
    "h": 222.857,
    "s": 54.783,
    "l": 54.902
  },
  "oklch": {
    "l": 0.56677,
    "c": 0.14492,
    "h": 265.6
  },
  "luminance": 0.177
}

Semantic roles & 50–950 ramp

primary

#4D71CB

secondary

#D4C59F

accent

#B44ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #4D71CB

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

Preview Lab → · Contrast checker → · Palette generator →