#577D9C#577D9C

#577D9C is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.4% C 0.064 H 243.8°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#577D9C
RGB	rgb(87, 125, 156)
HSL	hsl(207, 28%, 48%)
HSV	hsv(207, 44%, 61%)
CMYK	cmyk(44.2%, 19.9%, 0%, 38.8%)
CIE-LAB	lab(50.80, -4.75, -20.82)
CIE-LCH	lch(50.80, 21.35, 257.13°)
OKLab	oklab(57.37% -0.0283 -0.0577)
OKLCH	oklch(57.37% 0.064 243.8)
XYZ	xyz(17.2628, 19.0927, 34.2216)
Luminance	0.1909 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577D9C #9C7657

analogous

#579C99 #577D9C #575A9C

triadic

#577D9C #9C577D #7D9C57

tetradic

#577D9C #99579C #9C7657 #5A9C57

square

#577D9C #99579C #9C7657 #5A9C57

split-complementary

#577D9C #9C575A #9C9957

monochromatic

#2B3E4D #415E75 #577D9C #7B9BB5 #A2B9CB

Accessibility & contrast

On white

4.36

#577D9C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#577D9C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577D9C

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577D9C	#FFFFFF	#000000	##000000
##577D9C	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#707D9D

Deuteranopia (green-blind)

#67769B

Tritanopia (blue-blind)

#3C8487

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #577d9c;
/* rgb */ color: rgb(87, 125, 156);
/* oklch */ color: oklch(57.4% 0.064 243.8);

Tailwind

colors: {
  custom: {
    50: '#8aa2b9',
    500: '#577d9c',
    950: '#000000',
  },
}

SCSS

$custom: #577d9c;
$custom-light: #8aa2b9;
$custom-dark: #000000;

JSON

{
  "hex": "#577d9c",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 156
  },
  "hsl": {
    "h": 206.957,
    "s": 28.395,
    "l": 47.647
  },
  "oklch": {
    "l": 0.5737,
    "c": 0.06431,
    "h": 243.8
  },
  "luminance": 0.19094
}

Semantic roles & 50–950 ramp

primary

#577D9C

secondary

#B9A696

accent

#8F63C5

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0F11

muted

#7D7E80

Preview Lab

Preview with #577D9C

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

Preview Lab → · Contrast checker → · Palette generator →