#577ABF#577ABF

#577ABF is a mid, moderate blue. Relative luminance 0.197; OKLCH L 58.4% C 0.114 H 262.9°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#577ABF
RGB	rgb(87, 122, 191)
HSL	hsl(220, 45%, 55%)
HSV	hsv(220, 54%, 75%)
CMYK	cmyk(54.5%, 36.1%, 0%, 25.1%)
CIE-LAB	lab(51.50, 7.87, -39.96)
CIE-LCH	lch(51.50, 40.73, 281.14°)
OKLab	oklab(58.44% -0.014 -0.1129)
OKLCH	oklch(58.44% 0.114 262.9)
XYZ	xyz(20.2908, 19.7054, 52.0144)
Luminance	0.1971 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577ABF #BF9C57

analogous

#57AEBF #577ABF #6857BF

triadic

#577ABF #BF577A #7ABF57

tetradic

#577ABF #BF57AE #BF9C57 #57BF68

square

#577ABF #BF57AE #BF9C57 #57BF68

split-complementary

#577ABF #BF6857 #AEBF57

monochromatic

#2B4271 #3C5D9D #577ABF #839DD0 #B0C0E1

Accessibility & contrast

On white

4.25

#577ABF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#577ABF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577ABF

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577ABF	#FFFFFF	#000000	##000000
##577ABF	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E80C2

Deuteranopia (green-blind)

#5276BE

Tritanopia (blue-blind)

#1C8993

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #577abf;
/* rgb */ color: rgb(87, 122, 191);
/* oklch */ color: oklch(58.4% 0.114 262.9);

Tailwind

colors: {
  custom: {
    50: '#8da0d2',
    500: '#577abf',
    950: '#000000',
  },
}

SCSS

$custom: #577abf;
$custom-light: #8da0d2;
$custom-dark: #000000;

JSON

{
  "hex": "#577abf",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 191
  },
  "hsl": {
    "h": 219.808,
    "s": 44.828,
    "l": 54.51
  },
  "oklch": {
    "l": 0.5844,
    "c": 0.11382,
    "h": 262.9
  },
  "luminance": 0.19707
}

Semantic roles & 50–950 ramp

primary

#577ABF

secondary

#CFC0A3

accent

#A953D5

background

#F9F9FC

surface

#F1F2F9

border

#CBCCD2

text

#0D0E14

muted

#7E7E82

Preview Lab

Preview with #577ABF

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

Preview Lab → · Contrast checker → · Palette generator →