#577D99#577D99

#577D99 is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.2% C 0.061 H 241.1°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#577D99
RGB	rgb(87, 125, 153)
HSL	hsl(205, 28%, 47%)
HSV	hsv(205, 43%, 60%)
CMYK	cmyk(43.1%, 18.3%, 0%, 40%)
CIE-LAB	lab(50.68, -5.63, -19.25)
CIE-LCH	lch(50.68, 20.05, 253.70°)
OKLab	oklab(57.24% -0.0295 -0.0533)
OKLCH	oklch(57.24% 0.061 241.1)
XYZ	xyz(17.0119, 18.9923, 32.9003)
Luminance	0.1899 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577D99 #997357

analogous

#579994 #577D99 #575C99

triadic

#577D99 #99577D #7D9957

tetradic

#577D99 #945799 #997357 #5C9957

square

#577D99 #945799 #997357 #5C9957

split-complementary

#577D99 #99575C #999457

monochromatic

#2B3D4B #415D72 #577D99 #7A9BB3 #A1B8C9

Accessibility & contrast

On white

4.38

#577D99 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#577D99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577D99

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577D99	#FFFFFF	#000000	##000000
##577D99	1.00	4.38	4.80	4.80
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#717D9A

Deuteranopia (green-blind)

#687699

Tritanopia (blue-blind)

#3D8486

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #577d99;
/* rgb */ color: rgb(87, 125, 153);
/* oklch */ color: oklch(57.2% 0.061 241.1);

Tailwind

colors: {
  custom: {
    50: '#89a2b7',
    500: '#577d99',
    950: '#000000',
  },
}

SCSS

$custom: #577d99;
$custom-light: #89a2b7;
$custom-dark: #000000;

JSON

{
  "hex": "#577d99",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 153
  },
  "hsl": {
    "h": 205.455,
    "s": 27.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.57239,
    "c": 0.06087,
    "h": 241.1
  },
  "luminance": 0.18993
}

Semantic roles & 50–950 ramp

primary

#577D99

secondary

#B7A395

accent

#8D64C4

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0F11

muted

#7D7E80

Preview Lab

Preview with #577D99

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

Preview Lab → · Contrast checker → · Palette generator →