#577FAB#577FAB

#577FAB is a mid, moderate cyan. Relative luminance 0.201; OKLCH L 58.5% C 0.081 H 251.6°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#577FAB
RGB	rgb(87, 127, 171)
HSL	hsl(211, 33%, 51%)
HSV	hsv(211, 49%, 67%)
CMYK	cmyk(49.1%, 25.7%, 0%, 32.9%)
CIE-LAB	lab(52.00, -1.43, -27.67)
CIE-LCH	lch(52.00, 27.70, 267.05°)
OKLab	oklab(58.52% -0.0257 -0.0773)
OKLCH	oklch(58.52% 0.081 251.6)
XYZ	xyz(18.8680, 20.1439, 41.4141)
Luminance	0.2014 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FAB #AB8357

analogous

#57A9AB #577FAB #5957AB

triadic

#577FAB #AB577F #7FAB57

tetradic

#577FAB #AB57A9 #AB8357 #57AB59

square

#577FAB #AB57A9 #AB8357 #57AB59

split-complementary

#577FAB #AB5957 #A9AB57

monochromatic

#2D435A #426183 #577FAB #809EBF #A9BDD4

Accessibility & contrast

On white

4.18

#577FAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#577FAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FAB

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FAB	#FFFFFF	#000000	##000000
##577FAB	1.00	4.18	5.03	5.03
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E81AD

Deuteranopia (green-blind)

#6378AA

Tritanopia (blue-blind)

#31898E

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #577fab;
/* rgb */ color: rgb(87, 127, 171);
/* oklch */ color: oklch(58.5% 0.081 251.6);

Tailwind

colors: {
  custom: {
    50: '#8ba4c4',
    500: '#577fab',
    950: '#000000',
  },
}

SCSS

$custom: #577fab;
$custom-light: #8ba4c4;
$custom-dark: #000000;

JSON

{
  "hex": "#577fab",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 171
  },
  "hsl": {
    "h": 211.429,
    "s": 33.333,
    "l": 50.588
  },
  "oklch": {
    "l": 0.58522,
    "c": 0.08147,
    "h": 251.6
  },
  "luminance": 0.20145
}

Semantic roles & 50–950 ramp

primary

#577FAB

secondary

#C2B09C

accent

#965EC9

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0C0F12

muted

#7D7F81

Preview Lab

Preview with #577FAB

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

Preview Lab → · Contrast checker → · Palette generator →