#577AAE#577AAE

#577AAE is a mid, moderate blue. Relative luminance 0.190; OKLCH L 57.5% C 0.090 H 258.1°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#577AAE
RGB	rgb(87, 122, 174)
HSL	hsl(216, 35%, 51%)
HSV	hsv(216, 50%, 68%)
CMYK	cmyk(50%, 29.9%, 0%, 31.8%)
CIE-LAB	lab(50.69, 2.46, -31.45)
CIE-LCH	lch(50.69, 31.54, 274.48°)
OKLab	oklab(57.54% -0.0186 -0.0882)
OKLCH	oklch(57.54% 0.09 258.1)
XYZ	xyz(18.5274, 19.0000, 42.7273)
Luminance	0.1900 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577AAE #AE8B57

analogous

#57A5AE #577AAE #5F57AE

triadic

#577AAE #AE577A #7AAE57

tetradic

#577AAE #AE57A5 #AE8B57 #57AE5F

square

#577AAE #AE57A5 #AE8B57 #57AE5F

split-complementary

#577AAE #AE5F57 #A5AE57

monochromatic

#2D415E #415D87 #577AAE #809BC2 #AABBD6

Accessibility & contrast

On white

4.37

#577AAE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#577AAE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577AAE

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577AAE	#FFFFFF	#000000	##000000
##577AAE	1.00	4.37	4.80	4.80
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#667DB0

Deuteranopia (green-blind)

#5C75AD

Tritanopia (blue-blind)

#30858C

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #577aae;
/* rgb */ color: rgb(87, 122, 174);
/* oklch */ color: oklch(57.5% 0.090 258.1);

Tailwind

colors: {
  custom: {
    50: '#8ba0c6',
    500: '#577aae',
    950: '#000000',
  },
}

SCSS

$custom: #577aae;
$custom-light: #8ba0c6;
$custom-dark: #000000;

JSON

{
  "hex": "#577aae",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 174
  },
  "hsl": {
    "h": 215.862,
    "s": 34.94,
    "l": 51.176
  },
  "oklch": {
    "l": 0.57538,
    "c": 0.09015,
    "h": 258.1
  },
  "luminance": 0.19001
}

Semantic roles & 50–950 ramp

primary

#577AAE

secondary

#C4B49D

accent

#9F5DCB

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #577AAE

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

Preview Lab → · Contrast checker → · Palette generator →