#577EB3#577EB3

#577EB3 is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.7% C 0.093 H 256.3°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#577EB3
RGB	rgb(87, 126, 179)
HSL	hsl(215, 38%, 52%)
HSV	hsv(215, 51%, 70%)
CMYK	cmyk(51.4%, 29.6%, 0%, 29.8%)
CIE-LAB	lab(52.06, 1.64, -32.18)
CIE-LCH	lch(52.06, 32.23, 272.92°)
OKLab	oklab(58.69% -0.022 -0.0903)
OKLCH	oklch(58.69% 0.093 256.3)
XYZ	xyz(19.5252, 20.2012, 45.5094)
Luminance	0.2020 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EB3 #B38C57

analogous

#57ACB3 #577EB3 #5E57B3

triadic

#577EB3 #B3577E #7EB357

tetradic

#577EB3 #B357AC #B38C57 #57B35E

square

#577EB3 #B357AC #B38C57 #57B35E

split-complementary

#577EB3 #B35E57 #ACB357

monochromatic

#2D4463 #40618D #577EB3 #819EC6 #ABBFD9

Accessibility & contrast

On white

4.17

#577EB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#577EB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EB3

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EB3	#FFFFFF	#000000	##000000
##577EB3	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6981B5

Deuteranopia (green-blind)

#5E78B2

Tritanopia (blue-blind)

#2A8A91

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #577eb3;
/* rgb */ color: rgb(87, 126, 179);
/* oklch */ color: oklch(58.7% 0.093 256.3);

Tailwind

colors: {
  custom: {
    50: '#8ca3ca',
    500: '#577eb3',
    950: '#000000',
  },
}

SCSS

$custom: #577eb3;
$custom-light: #8ca3ca;
$custom-dark: #000000;

JSON

{
  "hex": "#577eb3",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 179
  },
  "hsl": {
    "h": 214.565,
    "s": 37.705,
    "l": 52.157
  },
  "oklch": {
    "l": 0.58689,
    "c": 0.09297,
    "h": 256.3
  },
  "luminance": 0.20203
}

Semantic roles & 50–950 ramp

primary

#577EB3

secondary

#C7B69F

accent

#9D5ACE

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0C0F13

muted

#7D7F82

Preview Lab

Preview with #577EB3

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

Preview Lab → · Contrast checker → · Palette generator →