#577A9C#577A9C

#577A9C is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.7% C 0.066 H 248.3°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#577A9C
RGB	rgb(87, 122, 156)
HSL	hsl(210, 28%, 48%)
HSV	hsv(210, 44%, 61%)
CMYK	cmyk(44.2%, 21.8%, 0%, 38.8%)
CIE-LAB	lab(49.91, -3.00, -22.18)
CIE-LCH	lch(49.91, 22.38, 262.29°)
OKLab	oklab(56.67% -0.0244 -0.0616)
OKLCH	oklch(56.67% 0.066 248.3)
XYZ	xyz(16.8888, 18.3445, 34.0970)
Luminance	0.1835 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577A9C #9C7957

analogous

#579C9B #577A9C #57589C

triadic

#577A9C #9C577A #7A9C57

tetradic

#577A9C #9B579C #9C7957 #589C57

square

#577A9C #9B579C #9C7957 #589C57

split-complementary

#577A9C #9C5758 #9C9B57

monochromatic

#2B3D4D #415B75 #577A9C #7B99B5 #A2B7CB

Accessibility & contrast

On white

4.50

#577A9C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#577A9C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577A9C

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577A9C	#FFFFFF	#000000	##000000
##577A9C	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7B9E

Deuteranopia (green-blind)

#64749B

Tritanopia (blue-blind)

#3C8285

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #577a9c;
/* rgb */ color: rgb(87, 122, 156);
/* oklch */ color: oklch(56.7% 0.066 248.3);

Tailwind

colors: {
  custom: {
    50: '#8aa0b9',
    500: '#577a9c',
    950: '#000000',
  },
}

SCSS

$custom: #577a9c;
$custom-light: #8aa0b9;
$custom-dark: #000000;

JSON

{
  "hex": "#577a9c",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 156
  },
  "hsl": {
    "h": 209.565,
    "s": 28.395,
    "l": 47.647
  },
  "oklch": {
    "l": 0.56673,
    "c": 0.06627,
    "h": 248.3
  },
  "luminance": 0.18346
}

Semantic roles & 50–950 ramp

primary

#577A9C

secondary

#B9A796

accent

#9363C5

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0E11

muted

#7D7E80

Preview Lab

Preview with #577A9C

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

Preview Lab → · Contrast checker → · Palette generator →