#4D577B#4D577B

#4D577B is a mid, moderate blue. Relative luminance 0.098; OKLCH L 46.3% C 0.060 H 272.0°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#4D577B
RGB	rgb(77, 87, 123)
HSL	hsl(227, 23%, 39%)
HSV	hsv(227, 37%, 48%)
CMYK	cmyk(37.4%, 29.3%, 0%, 51.8%)
CIE-LAB	lab(37.52, 5.67, -21.60)
CIE-LCH	lch(37.52, 22.33, 284.71°)
OKLab	oklab(46.34% 0.0021 -0.0601)
OKLCH	oklch(46.34% 0.06 272)
XYZ	xyz(10.0429, 9.8238, 20.1021)
Luminance	0.0982 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D577B #7B714D

analogous

#4D6E7B #4D577B #5A4D7B

triadic

#4D577B #7B4D57 #577B4D

tetradic

#4D577B #7B4D6E #7B714D #4D7B5A

square

#4D577B #7B4D6E #7B714D #4D7B5A

split-complementary

#4D577B #7B5A4D #6E7B4D

monochromatic

#1E2230 #353C55 #4D577B #66729F #8C95B7

Accessibility & contrast

On white

7.08

#4D577B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#4D577B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4D577B

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D577B	#FFFFFF	#000000	##FFFFFF
##4D577B	1.00	7.08	2.96	7.08
#FFFFFF	7.08	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B5A7D

Deuteranopia (green-blind)

#48577A

Tritanopia (blue-blind)

#3F5E64

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #4d577b;
/* rgb */ color: rgb(77, 87, 123);
/* oklch */ color: oklch(46.3% 0.060 272.0);

Tailwind

colors: {
  custom: {
    50: '#8086a1',
    500: '#4d577b',
    950: '#000000',
  },
}

SCSS

$custom: #4d577b;
$custom-light: #8086a1;
$custom-dark: #000000;

JSON

{
  "hex": "#4d577b",
  "rgb": {
    "r": 77,
    "g": 87,
    "b": 123
  },
  "hsl": {
    "h": 226.957,
    "s": 23,
    "l": 39.216
  },
  "oklch": {
    "l": 0.46342,
    "c": 0.0601,
    "h": 272
  },
  "luminance": 0.09824
}

Semantic roles & 50–950 ramp

primary

#4D577B

secondary

#A39C80

accent

#AD68BF

background

#F7F8F9

surface

#EEEFF2

border

#C9CACC

text

#0A0B0F

muted

#7C7C7E

Preview Lab

Preview with #4D577B

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

Preview Lab → · Contrast checker → · Palette generator →