#577D9D#577D9D

#577D9D is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.4% C 0.065 H 244.7°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#577D9D
RGB	rgb(87, 125, 157)
HSL	hsl(207, 29%, 48%)
HSV	hsv(207, 45%, 62%)
CMYK	cmyk(44.6%, 20.4%, 0%, 38.4%)
CIE-LAB	lab(50.84, -4.46, -21.34)
CIE-LCH	lch(50.84, 21.80, 258.19°)
OKLab	oklab(57.42% -0.028 -0.0592)
OKLCH	oklch(57.42% 0.065 244.7)
XYZ	xyz(17.3478, 19.1267, 34.6694)
Luminance	0.1913 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577D9D #9D7757

analogous

#579D9A #577D9D #575A9D

triadic

#577D9D #9D577D #7D9D57

tetradic

#577D9D #9A579D #9D7757 #5A9D57

square

#577D9D #9A579D #9D7757 #5A9D57

split-complementary

#577D9D #9D575A #9D9A57

monochromatic

#2B3E4E #415E76 #577D9D #7B9BB6 #A3B9CC

Accessibility & contrast

On white

4.35

#577D9D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#577D9D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577D9D

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577D9D	#FFFFFF	#000000	##000000
##577D9D	1.00	4.35	4.83	4.83
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#707D9F

Deuteranopia (green-blind)

#67769C

Tritanopia (blue-blind)

#3B8588

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #577d9d;
/* rgb */ color: rgb(87, 125, 157);
/* oklch */ color: oklch(57.4% 0.065 244.7);

Tailwind

colors: {
  custom: {
    50: '#8aa2ba',
    500: '#577d9d',
    950: '#000000',
  },
}

SCSS

$custom: #577d9d;
$custom-light: #8aa2ba;
$custom-dark: #000000;

JSON

{
  "hex": "#577d9d",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 157
  },
  "hsl": {
    "h": 207.429,
    "s": 28.689,
    "l": 47.843
  },
  "oklch": {
    "l": 0.57415,
    "c": 0.06549,
    "h": 244.7
  },
  "luminance": 0.19128
}

Semantic roles & 50–950 ramp

primary

#577D9D

secondary

#B9A696

accent

#9063C5

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0F11

muted

#7D7E80

Preview Lab

Preview with #577D9D

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

Preview Lab → · Contrast checker → · Palette generator →