#4F577B#4F577B

#4F577B is a mid, muted blue. Relative luminance 0.099; OKLCH L 46.5% C 0.059 H 274.2°. Best body text is #FFFFFF at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#4F577B
RGB	rgb(79, 87, 123)
HSL	hsl(229, 22%, 40%)
HSV	hsv(229, 36%, 48%)
CMYK	cmyk(35.8%, 29.3%, 0%, 51.8%)
CIE-LAB	lab(37.68, 6.29, -21.35)
CIE-LCH	lch(37.68, 22.26, 286.42°)
OKLab	oklab(46.5% 0.0044 -0.0593)
OKLCH	oklch(46.5% 0.059 274.2)
XYZ	xyz(10.2068, 9.9083, 20.1098)
Luminance	0.0991 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F577B #7B734F

analogous

#4F6D7B #4F577B #5D4F7B

triadic

#4F577B #7B4F57 #577B4F

tetradic

#4F577B #7B4F6D #7B734F #4F7B5D

square

#4F577B #7B4F6D #7B734F #4F7B5D

split-complementary

#4F577B #7B5D4F #6D7B4F

monochromatic

#1F2230 #373D56 #4F577B #69729E #8E95B6

Accessibility & contrast

On white

7.04

#4F577B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#4F577B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4F577B

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F577B	#FFFFFF	#000000	##FFFFFF
##4F577B	1.00	7.04	2.98	7.04
#FFFFFF	7.04	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5B7D

Deuteranopia (green-blind)

#48577A

Tritanopia (blue-blind)

#435E64

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #4f577b;
/* rgb */ color: rgb(79, 87, 123);
/* oklch */ color: oklch(46.5% 0.059 274.2);

Tailwind

colors: {
  custom: {
    50: '#8286a1',
    500: '#4f577b',
    950: '#000000',
  },
}

SCSS

$custom: #4f577b;
$custom-light: #8286a1;
$custom-dark: #000000;

JSON

{
  "hex": "#4f577b",
  "rgb": {
    "r": 79,
    "g": 87,
    "b": 123
  },
  "hsl": {
    "h": 229.091,
    "s": 21.782,
    "l": 39.608
  },
  "oklch": {
    "l": 0.465,
    "c": 0.05948,
    "h": 274.2
  },
  "luminance": 0.09909
}

Semantic roles & 50–950 ramp

primary

#4F577B

secondary

#A39D82

accent

#AF69BE

background

#F8F8F9

surface

#EFEFF2

border

#CACACC

text

#0A0B0F

muted

#7C7C7E

Preview Lab

Preview with #4F577B

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

Preview Lab → · Contrast checker → · Palette generator →