#577F99#577F99

#577F99 is a mid, moderate cyan. Relative luminance 0.195; OKLCH L 57.7% C 0.060 H 237.7°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#577F99
RGB	rgb(87, 127, 153)
HSL	hsl(204, 28%, 47%)
HSV	hsv(204, 43%, 60%)
CMYK	cmyk(43.1%, 17%, 0%, 40%)
CIE-LAB	lab(51.27, -6.78, -18.34)
CIE-LCH	lch(51.27, 19.55, 249.71°)
OKLab	oklab(57.71% -0.0321 -0.0507)
OKLCH	oklch(57.71% 0.06 237.7)
XYZ	xyz(17.2677, 19.5038, 32.9855)
Luminance	0.1951 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577F99 #997157

analogous

#579992 #577F99 #575E99

triadic

#577F99 #99577F #7F9957

tetradic

#577F99 #925799 #997157 #5E9957

square

#577F99 #925799 #997157 #5E9957

split-complementary

#577F99 #99575E #999257

monochromatic

#2B3E4B #415F72 #577F99 #7A9DB3 #A1BAC9

Accessibility & contrast

On white

4.28

#577F99 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#577F99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577F99

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577F99	#FFFFFF	#000000	##000000
##577F99	1.00	4.28	4.90	4.90
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#737E9A

Deuteranopia (green-blind)

#6A7799

Tritanopia (blue-blind)

#3D8687

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #577f99;
/* rgb */ color: rgb(87, 127, 153);
/* oklch */ color: oklch(57.7% 0.060 237.7);

Tailwind

colors: {
  custom: {
    50: '#89a4b7',
    500: '#577f99',
    950: '#000000',
  },
}

SCSS

$custom: #577f99;
$custom-light: #89a4b7;
$custom-dark: #000000;

JSON

{
  "hex": "#577f99",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 153
  },
  "hsl": {
    "h": 203.636,
    "s": 27.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.57708,
    "c": 0.06,
    "h": 237.7
  },
  "luminance": 0.19505
}

Semantic roles & 50–950 ramp

primary

#577F99

secondary

#B7A295

accent

#8A64C4

background

#F8FAFB

surface

#F0F4F6

border

#CBCED0

text

#0C0F11

muted

#7D7F80

Preview Lab

Preview with #577F99

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

Preview Lab → · Contrast checker → · Palette generator →