#577BAE#577BAE

#577BAE is a mid, moderate blue. Relative luminance 0.192; OKLCH L 57.8% C 0.089 H 257.1°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#577BAE
RGB	rgb(87, 123, 174)
HSL	hsl(215, 35%, 51%)
HSV	hsv(215, 50%, 68%)
CMYK	cmyk(50%, 29.3%, 0%, 31.8%)
CIE-LAB	lab(50.97, 1.87, -31.00)
CIE-LCH	lch(50.97, 31.05, 273.45°)
OKLab	oklab(57.76% -0.0198 -0.0869)
OKLCH	oklch(57.76% 0.089 257.1)
XYZ	xyz(18.6508, 19.2468, 42.7684)
Luminance	0.1925 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577BAE #AE8A57

analogous

#57A6AE #577BAE #5E57AE

triadic

#577BAE #AE577B #7BAE57

tetradic

#577BAE #AE57A6 #AE8A57 #57AE5E

square

#577BAE #AE57A6 #AE8A57 #57AE5E

split-complementary

#577BAE #AE5E57 #A6AE57

monochromatic

#2D415E #415E87 #577BAE #809BC2 #AABCD6

Accessibility & contrast

On white

4.33

#577BAE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#577BAE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577BAE

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577BAE	#FFFFFF	#000000	##000000
##577BAE	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#677EB0

Deuteranopia (green-blind)

#5D76AD

Tritanopia (blue-blind)

#2F868D

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #577bae;
/* rgb */ color: rgb(87, 123, 174);
/* oklch */ color: oklch(57.8% 0.089 257.1);

Tailwind

colors: {
  custom: {
    50: '#8ba1c6',
    500: '#577bae',
    950: '#000000',
  },
}

SCSS

$custom: #577bae;
$custom-light: #8ba1c6;
$custom-dark: #000000;

JSON

{
  "hex": "#577bae",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 174
  },
  "hsl": {
    "h": 215.172,
    "s": 34.94,
    "l": 51.176
  },
  "oklch": {
    "l": 0.57763,
    "c": 0.08914,
    "h": 257.1
  },
  "luminance": 0.19248
}

Semantic roles & 50–950 ramp

primary

#577BAE

secondary

#C4B49D

accent

#9D5DCB

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #577BAE

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

Preview Lab → · Contrast checker → · Palette generator →