#577F9E#577F9E

#577F9E is a mid, moderate cyan. Relative luminance 0.197; OKLCH L 57.9% C 0.066 H 242.5°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#577F9E
RGB	rgb(87, 127, 158)
HSL	hsl(206, 29%, 48%)
HSV	hsv(206, 45%, 62%)
CMYK	cmyk(44.9%, 19.6%, 0%, 38%)
CIE-LAB	lab(51.46, -5.33, -20.95)
CIE-LCH	lch(51.46, 21.62, 255.74°)
OKLab	oklab(57.93% -0.0302 -0.0581)
OKLCH	oklch(57.93% 0.066 242.5)
XYZ	xyz(17.6893, 19.6724, 35.2062)
Luminance	0.1967 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577F9E #9E7657

analogous

#579E99 #577F9E #575B9E

triadic

#577F9E #9E577F #7F9E57

tetradic

#577F9E #99579E #9E7657 #5B9E57

square

#577F9E #99579E #9E7657 #5B9E57

split-complementary

#577F9E #9E575B #9E9957

monochromatic

#2C404F #415F77 #577F9E #7C9DB7 #A3BACC

Accessibility & contrast

On white

4.26

#577F9E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#577F9E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577F9E

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577F9E	#FFFFFF	#000000	##000000
##577F9E	1.00	4.26	4.93	4.93
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.93	21.00	1.00	1.00
##000000	4.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#727F9F

Deuteranopia (green-blind)

#68779D

Tritanopia (blue-blind)

#3A8789

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #577f9e;
/* rgb */ color: rgb(87, 127, 158);
/* oklch */ color: oklch(57.9% 0.066 242.5);

Tailwind

colors: {
  custom: {
    50: '#8aa4ba',
    500: '#577f9e',
    950: '#000000',
  },
}

SCSS

$custom: #577f9e;
$custom-light: #8aa4ba;
$custom-dark: #000000;

JSON

{
  "hex": "#577f9e",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 158
  },
  "hsl": {
    "h": 206.197,
    "s": 28.98,
    "l": 48.039
  },
  "oklch": {
    "l": 0.57925,
    "c": 0.0655,
    "h": 242.5
  },
  "luminance": 0.19674
}

Semantic roles & 50–950 ramp

primary

#577F9E

secondary

#BAA697

accent

#8E63C5

background

#F8FAFB

surface

#F0F4F6

border

#CBCED0

text

#0C0F11

muted

#7D7F80

Preview Lab

Preview with #577F9E

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

Preview Lab → · Contrast checker → · Palette generator →