#577FB2#577FB2

#577FB2 is a mid, moderate cyan. Relative luminance 0.204; OKLCH L 58.9% C 0.091 H 255.0°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#577FB2
RGB	rgb(87, 127, 178)
HSL	hsl(214, 37%, 52%)
HSV	hsv(214, 51%, 70%)
CMYK	cmyk(51.1%, 28.7%, 0%, 30.2%)
CIE-LAB	lab(52.31, 0.74, -31.23)
CIE-LCH	lch(52.31, 31.24, 271.35°)
OKLab	oklab(58.86% -0.0235 -0.0876)
OKLCH	oklch(58.86% 0.091 255)
XYZ	xyz(19.5530, 20.4179, 45.0215)
Luminance	0.2042 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FB2 #B28A57

analogous

#57ADB2 #577FB2 #5D57B2

triadic

#577FB2 #B2577F #7FB257

tetradic

#577FB2 #B257AD #B28A57 #57B25D

square

#577FB2 #B257AD #B28A57 #57B25D

split-complementary

#577FB2 #B25D57 #ADB257

monochromatic

#2D4462 #40618C #577FB2 #819FC5 #ABBFD8

Accessibility & contrast

On white

4.13

#577FB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#577FB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FB2

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FB2	#FFFFFF	#000000	##000000
##577FB2	1.00	4.13	5.08	5.08
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B82B4

Deuteranopia (green-blind)

#6079B1

Tritanopia (blue-blind)

#2B8A91

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #577fb2;
/* rgb */ color: rgb(87, 127, 178);
/* oklch */ color: oklch(58.9% 0.091 255.0);

Tailwind

colors: {
  custom: {
    50: '#8ca3c9',
    500: '#577fb2',
    950: '#000000',
  },
}

SCSS

$custom: #577fb2;
$custom-light: #8ca3c9;
$custom-dark: #000000;

JSON

{
  "hex": "#577fb2",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 178
  },
  "hsl": {
    "h": 213.626,
    "s": 37.143,
    "l": 51.961
  },
  "oklch": {
    "l": 0.58864,
    "c": 0.09067,
    "h": 255
  },
  "luminance": 0.20419
}

Semantic roles & 50–950 ramp

primary

#577FB2

secondary

#C6B59E

accent

#9B5BCD

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0C0F13

muted

#7D7F82

Preview Lab

Preview with #577FB2

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

Preview Lab → · Contrast checker → · Palette generator →