#577E99#577E99

#577E99 is a mid, moderate cyan. Relative luminance 0.192; OKLCH L 57.5% C 0.060 H 239.4°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#577E99
RGB	rgb(87, 126, 153)
HSL	hsl(205, 28%, 47%)
HSV	hsv(205, 43%, 60%)
CMYK	cmyk(43.1%, 17.6%, 0%, 40%)
CIE-LAB	lab(50.97, -6.20, -18.79)
CIE-LCH	lch(50.97, 19.79, 251.73°)
OKLab	oklab(57.47% -0.0308 -0.052)
OKLCH	oklch(57.47% 0.06 239.4)
XYZ	xyz(17.1392, 19.2468, 32.9427)
Luminance	0.1925 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577E99 #997257

analogous

#579993 #577E99 #575D99

triadic

#577E99 #99577E #7E9957

tetradic

#577E99 #935799 #997257 #5D9957

square

#577E99 #935799 #997257 #5D9957

split-complementary

#577E99 #99575D #999357

monochromatic

#2B3E4B #415E72 #577E99 #7A9CB3 #A1B9C9

Accessibility & contrast

On white

4.33

#577E99 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#577E99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577E99

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577E99	#FFFFFF	#000000	##000000
##577E99	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#727D9A

Deuteranopia (green-blind)

#697699

Tritanopia (blue-blind)

#3D8587

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #577e99;
/* rgb */ color: rgb(87, 126, 153);
/* oklch */ color: oklch(57.5% 0.060 239.4);

Tailwind

colors: {
  custom: {
    50: '#89a3b7',
    500: '#577e99',
    950: '#000000',
  },
}

SCSS

$custom: #577e99;
$custom-light: #89a3b7;
$custom-dark: #000000;

JSON

{
  "hex": "#577e99",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 153
  },
  "hsl": {
    "h": 204.545,
    "s": 27.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.57473,
    "c": 0.06041,
    "h": 239.4
  },
  "luminance": 0.19248
}

Semantic roles & 50–950 ramp

primary

#577E99

secondary

#B7A395

accent

#8B64C4

background

#F8FAFB

surface

#F0F3F6

border

#CBCDD0

text

#0C0F11

muted

#7D7F80

Preview Lab

Preview with #577E99

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

Preview Lab → · Contrast checker → · Palette generator →