#577BA5#577BA5

#577BA5 is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 57.3% C 0.077 H 252.9°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#577BA5
RGB	rgb(87, 123, 165)
HSL	hsl(212, 31%, 49%)
HSV	hsv(212, 47%, 65%)
CMYK	cmyk(47.3%, 25.5%, 0%, 35.3%)
CIE-LAB	lab(50.58, -0.90, -26.39)
CIE-LCH	lch(50.58, 26.41, 268.05°)
OKLab	oklab(57.32% -0.0227 -0.0736)
OKLCH	oklch(57.32% 0.077 252.9)
XYZ	xyz(17.8027, 18.9076, 38.3014)
Luminance	0.1891 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577BA5 #A58157

analogous

#57A2A5 #577BA5 #5A57A5

triadic

#577BA5 #A5577B #7BA557

tetradic

#577BA5 #A557A2 #A58157 #57A55A

square

#577BA5 #A557A2 #A58157 #57A55A

split-complementary

#577BA5 #A55A57 #A2A557

monochromatic

#2D3F55 #425D7D #577BA5 #7E9ABB #A6BAD0

Accessibility & contrast

On white

4.39

#577BA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#577BA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577BA5

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577BA5	#FFFFFF	#000000	##000000
##577BA5	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7DA7

Deuteranopia (green-blind)

#6175A4

Tritanopia (blue-blind)

#368489

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #577ba5;
/* rgb */ color: rgb(87, 123, 165);
/* oklch */ color: oklch(57.3% 0.077 252.9);

Tailwind

colors: {
  custom: {
    50: '#8aa1c0',
    500: '#577ba5',
    950: '#000000',
  },
}

SCSS

$custom: #577ba5;
$custom-light: #8aa1c0;
$custom-dark: #000000;

JSON

{
  "hex": "#577ba5",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 165
  },
  "hsl": {
    "h": 212.308,
    "s": 30.952,
    "l": 49.412
  },
  "oklch": {
    "l": 0.57322,
    "c": 0.07706,
    "h": 252.9
  },
  "luminance": 0.18909
}

Semantic roles & 50–950 ramp

primary

#577BA5

secondary

#BEAD9A

accent

#9861C7

background

#F8F9FB

surface

#F0F2F7

border

#CBCCD0

text

#0C0E12

muted

#7D7E81

Preview Lab

Preview with #577BA5

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

Preview Lab → · Contrast checker → · Palette generator →