#577FB4#577FB4

#577FB4 is a mid, moderate cyan. Relative luminance 0.205; OKLCH L 59.0% C 0.093 H 255.8°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#577FB4
RGB	rgb(87, 127, 180)
HSL	hsl(214, 38%, 52%)
HSV	hsv(214, 52%, 71%)
CMYK	cmyk(51.7%, 29.4%, 0%, 29.4%)
CIE-LAB	lab(52.40, 1.36, -32.24)
CIE-LCH	lch(52.40, 32.27, 272.42°)
OKLab	oklab(58.97% -0.0229 -0.0905)
OKLCH	oklch(58.97% 0.093 255.8)
XYZ	xyz(19.7552, 20.4988, 46.0868)
Luminance	0.2050 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FB4 #B48C57

analogous

#57ADB4 #577FB4 #5E57B4

triadic

#577FB4 #B4577F #7FB457

tetradic

#577FB4 #B457AD #B48C57 #57B45E

square

#577FB4 #B457AD #B48C57 #57B45E

split-complementary

#577FB4 #B45E57 #ADB457

monochromatic

#2D4464 #40618E #577FB4 #819FC7 #ACBFDA

Accessibility & contrast

On white

4.12

#577FB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#577FB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FB4

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FB4	#FFFFFF	#000000	##000000
##577FB4	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A82B6

Deuteranopia (green-blind)

#5F79B3

Tritanopia (blue-blind)

#298B92

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #577fb4;
/* rgb */ color: rgb(87, 127, 180);
/* oklch */ color: oklch(59.0% 0.093 255.8);

Tailwind

colors: {
  custom: {
    50: '#8ca3ca',
    500: '#577fb4',
    950: '#000000',
  },
}

SCSS

$custom: #577fb4;
$custom-light: #8ca3ca;
$custom-dark: #000000;

JSON

{
  "hex": "#577fb4",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 180
  },
  "hsl": {
    "h": 214.194,
    "s": 38.272,
    "l": 52.353
  },
  "oklch": {
    "l": 0.58965,
    "c": 0.09335,
    "h": 255.8
  },
  "luminance": 0.205
}

Semantic roles & 50–950 ramp

primary

#577FB4

secondary

#C8B69F

accent

#9C5ACE

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0C0F13

muted

#7D7F82

Preview Lab

Preview with #577FB4

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

Preview Lab → · Contrast checker → · Palette generator →