#577E9B#577E9B

#577E9B is a mid, moderate cyan. Relative luminance 0.193; OKLCH L 57.6% C 0.063 H 241.4°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#577E9B
RGB	rgb(87, 126, 155)
HSL	hsl(206, 28%, 47%)
HSV	hsv(206, 44%, 61%)
CMYK	cmyk(43.9%, 18.7%, 0%, 39.2%)
CIE-LAB	lab(51.05, -5.63, -19.84)
CIE-LCH	lch(51.05, 20.62, 254.17°)
OKLab	oklab(57.56% -0.03 -0.055)
OKLCH	oklch(57.56% 0.063 241.4)
XYZ	xyz(17.3057, 19.3134, 33.8199)
Luminance	0.1931 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577E9B #9B7457

analogous

#579B96 #577E9B #575C9B

triadic

#577E9B #9B577E #7E9B57

tetradic

#577E9B #96579B #9B7457 #5C9B57

square

#577E9B #96579B #9B7457 #5C9B57

split-complementary

#577E9B #9B575C #9B9657

monochromatic

#2B3E4D #415E74 #577E9B #7B9CB5 #A2B9CB

Accessibility & contrast

On white

4.32

#577E9B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#577E9B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577E9B

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577E9B	#FFFFFF	#000000	##000000
##577E9B	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#727E9C

Deuteranopia (green-blind)

#69769A

Tritanopia (blue-blind)

#3C8588

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #577e9b;
/* rgb */ color: rgb(87, 126, 155);
/* oklch */ color: oklch(57.6% 0.063 241.4);

Tailwind

colors: {
  custom: {
    50: '#8aa3b8',
    500: '#577e9b',
    950: '#000000',
  },
}

SCSS

$custom: #577e9b;
$custom-light: #8aa3b8;
$custom-dark: #000000;

JSON

{
  "hex": "#577e9b",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 155
  },
  "hsl": {
    "h": 205.588,
    "s": 28.099,
    "l": 47.451
  },
  "oklch": {
    "l": 0.5756,
    "c": 0.06262,
    "h": 241.4
  },
  "luminance": 0.19315
}

Semantic roles & 50–950 ramp

primary

#577E9B

secondary

#B8A496

accent

#8D63C4

background

#F8FAFB

surface

#F0F3F6

border

#CBCDD0

text

#0C0F11

muted

#7D7F80

Preview Lab

Preview with #577E9B

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

Preview Lab → · Contrast checker → · Palette generator →