#577FB0#577FB0

#577FB0 is a mid, moderate cyan. Relative luminance 0.203; OKLCH L 58.8% C 0.088 H 254.1°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#577FB0
RGB	rgb(87, 127, 176)
HSL	hsl(213, 36%, 52%)
HSV	hsv(213, 51%, 69%)
CMYK	cmyk(50.6%, 27.8%, 0%, 31%)
CIE-LAB	lab(52.22, 0.12, -30.22)
CIE-LCH	lch(52.22, 30.22, 270.22°)
OKLab	oklab(58.77% -0.0241 -0.0846)
OKLCH	oklch(58.77% 0.088 254.1)
XYZ	xyz(19.3536, 20.3382, 43.9717)
Luminance	0.2034 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FB0 #B08857

analogous

#57ABB0 #577FB0 #5C57B0

triadic

#577FB0 #B0577F #7FB057

tetradic

#577FB0 #B057AB #B08857 #57B05C

square

#577FB0 #B057AB #B08857 #57B05C

split-complementary

#577FB0 #B05C57 #ABB057

monochromatic

#2D4460 #416189 #577FB0 #819FC4 #AABED7

Accessibility & contrast

On white

4.14

#577FB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#577FB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FB0

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FB0	#FFFFFF	#000000	##000000
##577FB0	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C81B2

Deuteranopia (green-blind)

#6179AF

Tritanopia (blue-blind)

#2D8A90

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #577fb0;
/* rgb */ color: rgb(87, 127, 176);
/* oklch */ color: oklch(58.8% 0.088 254.1);

Tailwind

colors: {
  custom: {
    50: '#8ca3c7',
    500: '#577fb0',
    950: '#000000',
  },
}

SCSS

$custom: #577fb0;
$custom-light: #8ca3c7;
$custom-dark: #000000;

JSON

{
  "hex": "#577fb0",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 176
  },
  "hsl": {
    "h": 213.034,
    "s": 36.032,
    "l": 51.569
  },
  "oklch": {
    "l": 0.58765,
    "c": 0.08801,
    "h": 254.1
  },
  "luminance": 0.2034
}

Semantic roles & 50–950 ramp

primary

#577FB0

secondary

#C5B39E

accent

#9A5CCC

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0C0F13

muted

#7D7F82

Preview Lab

Preview with #577FB0

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

Preview Lab → · Contrast checker → · Palette generator →