#577EB1#577EB1

#577EB1 is a mid, moderate cyan. Relative luminance 0.201; OKLCH L 58.6% C 0.090 H 255.5°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#577EB1
RGB	rgb(87, 126, 177)
HSL	hsl(214, 37%, 52%)
HSV	hsv(214, 51%, 69%)
CMYK	cmyk(50.8%, 28.8%, 0%, 30.6%)
CIE-LAB	lab(51.97, 1.02, -31.17)
CIE-LCH	lch(51.97, 31.19, 271.87°)
OKLab	oklab(58.59% -0.0226 -0.0874)
OKLCH	oklch(58.59% 0.09 255.5)
XYZ	xyz(19.3244, 20.1209, 44.4519)
Luminance	0.2012 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EB1 #B18A57

analogous

#57ABB1 #577EB1 #5D57B1

triadic

#577EB1 #B1577E #7EB157

tetradic

#577EB1 #B157AB #B18A57 #57B15D

square

#577EB1 #B157AB #B18A57 #57B15D

split-complementary

#577EB1 #B15D57 #ABB157

monochromatic

#2D4361 #40608A #577EB1 #819EC4 #ABBED8

Accessibility & contrast

On white

4.18

#577EB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#577EB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EB1

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EB1	#FFFFFF	#000000	##000000
##577EB1	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A81B3

Deuteranopia (green-blind)

#5F78B0

Tritanopia (blue-blind)

#2C8990

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #577eb1;
/* rgb */ color: rgb(87, 126, 177);
/* oklch */ color: oklch(58.6% 0.090 255.5);

Tailwind

colors: {
  custom: {
    50: '#8ca3c8',
    500: '#577eb1',
    950: '#000000',
  },
}

SCSS

$custom: #577eb1;
$custom-light: #8ca3c8;
$custom-dark: #000000;

JSON

{
  "hex": "#577eb1",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 177
  },
  "hsl": {
    "h": 214,
    "s": 36.585,
    "l": 51.765
  },
  "oklch": {
    "l": 0.58589,
    "c": 0.09027,
    "h": 255.5
  },
  "luminance": 0.20122
}

Semantic roles & 50–950 ramp

primary

#577EB1

secondary

#C6B59E

accent

#9B5BCD

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0C0F13

muted

#7D7F82

Preview Lab

Preview with #577EB1

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

Preview Lab → · Contrast checker → · Palette generator →