#577CC7#577CC7

#577CC7 is a mid, vivid blue. Relative luminance 0.206; OKLCH L 59.3% C 0.123 H 263.3°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#577CC7
RGB	rgb(87, 124, 199)
HSL	hsl(220, 50%, 56%)
HSV	hsv(220, 56%, 78%)
CMYK	cmyk(56.3%, 37.7%, 0%, 22%)
CIE-LAB	lab(52.47, 9.26, -43.01)
CIE-LCH	lch(52.47, 43.99, 282.15°)
OKLab	oklab(59.32% -0.0144 -0.1218)
OKLCH	oklch(59.32% 0.123 263.3)
XYZ	xyz(21.4434, 20.5634, 56.8609)
Luminance	0.2056 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577CC7 #C7A257

analogous

#57B4C7 #577CC7 #6A57C7

triadic

#577CC7 #C7577C #7CC757

tetradic

#577CC7 #C757B4 #C7A257 #57C76A

square

#577CC7 #C757B4 #C7A257 #57C76A

split-complementary

#577CC7 #C76A57 #B4C757

monochromatic

#29447B #385DA9 #577CC7 #85A0D6 #B3C4E6

Accessibility & contrast

On white

4.11

#577CC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#577CC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577CC7

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577CC7	#FFFFFF	#000000	##000000
##577CC7	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D83CA

Deuteranopia (green-blind)

#4F78C5

Tritanopia (blue-blind)

#078D98

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #577cc7;
/* rgb */ color: rgb(87, 124, 199);
/* oklch */ color: oklch(59.3% 0.123 263.3);

Tailwind

colors: {
  custom: {
    50: '#8ea1d8',
    500: '#577cc7',
    950: '#000000',
  },
}

SCSS

$custom: #577cc7;
$custom-light: #8ea1d8;
$custom-dark: #000000;

JSON

{
  "hex": "#577cc7",
  "rgb": {
    "r": 87,
    "g": 124,
    "b": 199
  },
  "hsl": {
    "h": 220.179,
    "s": 50,
    "l": 56.078
  },
  "oklch": {
    "l": 0.59322,
    "c": 0.12267,
    "h": 263.3
  },
  "luminance": 0.20565
}

Semantic roles & 50–950 ramp

primary

#577CC7

secondary

#D4C5A6

accent

#AC4EDA

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E14

muted

#7E7E83

Preview Lab

Preview with #577CC7

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

Preview Lab → · Contrast checker → · Palette generator →