#577EB2#577EB2

#577EB2 is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.6% C 0.092 H 255.9°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#577EB2
RGB	rgb(87, 126, 178)
HSL	hsl(214, 37%, 52%)
HSV	hsv(214, 51%, 70%)
CMYK	cmyk(51.1%, 29.2%, 0%, 30.2%)
CIE-LAB	lab(52.02, 1.33, -31.68)
CIE-LCH	lch(52.02, 31.71, 272.41°)
OKLab	oklab(58.64% -0.0223 -0.0889)
OKLCH	oklch(58.64% 0.092 255.9)
XYZ	xyz(19.4245, 20.1609, 44.9787)
Luminance	0.2016 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EB2 #B28B57

analogous

#57ACB2 #577EB2 #5E57B2

triadic

#577EB2 #B2577E #7EB257

tetradic

#577EB2 #B257AC #B28B57 #57B25E

square

#577EB2 #B257AC #B28B57 #57B25E

split-complementary

#577EB2 #B25E57 #ACB257

monochromatic

#2D4462 #40608C #577EB2 #819EC5 #ABBED8

Accessibility & contrast

On white

4.17

#577EB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#577EB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EB2

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EB2	#FFFFFF	#000000	##000000
##577EB2	1.00	4.17	5.03	5.03
#FFFFFF	4.17	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)

#6A81B4

Deuteranopia (green-blind)

#5E78B1

Tritanopia (blue-blind)

#2B8A90

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #577eb2;
/* rgb */ color: rgb(87, 126, 178);
/* oklch */ color: oklch(58.6% 0.092 255.9);

Tailwind

colors: {
  custom: {
    50: '#8ca3c9',
    500: '#577eb2',
    950: '#000000',
  },
}

SCSS

$custom: #577eb2;
$custom-light: #8ca3c9;
$custom-dark: #000000;

JSON

{
  "hex": "#577eb2",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 178
  },
  "hsl": {
    "h": 214.286,
    "s": 37.143,
    "l": 51.961
  },
  "oklch": {
    "l": 0.58639,
    "c": 0.09163,
    "h": 255.9
  },
  "luminance": 0.20162
}

Semantic roles & 50–950 ramp

primary

#577EB2

secondary

#C6B59E

accent

#9C5BCD

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0C0F13

muted

#7D7F82

Preview Lab

Preview with #577EB2

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

Preview Lab → · Contrast checker → · Palette generator →