#577FC2#577FC2

#577FC2 is a mid, moderate blue. Relative luminance 0.211; OKLCH L 59.7% C 0.112 H 260.3°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#577FC2
RGB	rgb(87, 127, 194)
HSL	hsl(218, 47%, 55%)
HSV	hsv(218, 55%, 76%)
CMYK	cmyk(55.2%, 34.5%, 0%, 23.9%)
CIE-LAB	lab(53.06, 5.83, -39.23)
CIE-LCH	lch(53.06, 39.66, 278.45°)
OKLab	oklab(59.7% -0.019 -0.1108)
OKLCH	oklch(59.7% 0.112 260.3)
XYZ	xyz(21.2541, 21.0984, 53.9808)
Luminance	0.2110 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FC2 #C29A57

analogous

#57B5C2 #577FC2 #6457C2

triadic

#577FC2 #C2577F #7FC257

tetradic

#577FC2 #C257B5 #C29A57 #57C264

square

#577FC2 #C257B5 #C29A57 #57C264

split-complementary

#577FC2 #C26457 #B5C257

monochromatic

#2A4674 #3B61A1 #577FC2 #84A1D2 #B1C3E3

Accessibility & contrast

On white

4.02

#577FC2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#577FC2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FC2

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FC2	#FFFFFF	#000000	##000000
##577FC2	1.00	4.02	5.22	5.22
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6484C5

Deuteranopia (green-blind)

#577AC1

Tritanopia (blue-blind)

#148E97

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #577fc2;
/* rgb */ color: rgb(87, 127, 194);
/* oklch */ color: oklch(59.7% 0.112 260.3);

Tailwind

colors: {
  custom: {
    50: '#8ea3d5',
    500: '#577fc2',
    950: '#000000',
  },
}

SCSS

$custom: #577fc2;
$custom-light: #8ea3d5;
$custom-dark: #000000;

JSON

{
  "hex": "#577fc2",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 194
  },
  "hsl": {
    "h": 217.57,
    "s": 46.725,
    "l": 55.098
  },
  "oklch": {
    "l": 0.59697,
    "c": 0.11239,
    "h": 260.3
  },
  "luminance": 0.211
}

Semantic roles & 50–950 ramp

primary

#577FC2

secondary

#D1C0A4

accent

#A551D6

background

#F9FAFD

surface

#F1F3FA

border

#CBCDD3

text

#0D0F14

muted

#7E7F83

Preview Lab

Preview with #577FC2

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

Preview Lab → · Contrast checker → · Palette generator →