#577D9B#577D9B

#577D9B is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.3% C 0.063 H 242.9°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#577D9B
RGB	rgb(87, 125, 155)
HSL	hsl(206, 28%, 47%)
HSV	hsv(206, 44%, 61%)
CMYK	cmyk(43.9%, 19.4%, 0%, 39.2%)
CIE-LAB	lab(50.76, -5.05, -20.29)
CIE-LCH	lch(50.76, 20.91, 256.04°)
OKLab	oklab(57.33% -0.0287 -0.0562)
OKLCH	oklch(57.33% 0.063 242.9)
XYZ	xyz(17.1785, 19.0589, 33.7775)
Luminance	0.1906 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577D9B #9B7557

analogous

#579B97 #577D9B #575B9B

triadic

#577D9B #9B577D #7D9B57

tetradic

#577D9B #97579B #9B7557 #5B9B57

square

#577D9B #97579B #9B7557 #5B9B57

split-complementary

#577D9B #9B575B #9B9757

monochromatic

#2B3E4D #415D74 #577D9B #7B9BB5 #A2B9CB

Accessibility & contrast

On white

4.36

#577D9B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#577D9B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577D9B

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577D9B	#FFFFFF	#000000	##000000
##577D9B	1.00	4.36	4.81	4.81
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#707D9C

Deuteranopia (green-blind)

#67769A

Tritanopia (blue-blind)

#3C8487

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #577d9b;
/* rgb */ color: rgb(87, 125, 155);
/* oklch */ color: oklch(57.3% 0.063 242.9);

Tailwind

colors: {
  custom: {
    50: '#8aa2b8',
    500: '#577d9b',
    950: '#000000',
  },
}

SCSS

$custom: #577d9b;
$custom-light: #8aa2b8;
$custom-dark: #000000;

JSON

{
  "hex": "#577d9b",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 155
  },
  "hsl": {
    "h": 206.471,
    "s": 28.099,
    "l": 47.451
  },
  "oklch": {
    "l": 0.57326,
    "c": 0.06315,
    "h": 242.9
  },
  "luminance": 0.1906
}

Semantic roles & 50–950 ramp

primary

#577D9B

secondary

#B8A596

accent

#8E63C4

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0F11

muted

#7D7E80

Preview Lab

Preview with #577D9B

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

Preview Lab → · Contrast checker → · Palette generator →