#577DB2#577DB2

#577DB2 is a mid, moderate cyan. Relative luminance 0.199; OKLCH L 58.4% C 0.093 H 256.8°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#577DB2
RGB	rgb(87, 125, 178)
HSL	hsl(215, 37%, 52%)
HSV	hsv(215, 51%, 70%)
CMYK	cmyk(51.1%, 29.8%, 0%, 30.2%)
CIE-LAB	lab(51.73, 1.93, -32.13)
CIE-LCH	lch(51.73, 32.18, 273.43°)
OKLab	oklab(58.41% -0.0211 -0.0902)
OKLCH	oklch(58.41% 0.093 256.8)
XYZ	xyz(19.2972, 19.9064, 44.9363)
Luminance	0.1991 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DB2 #B28C57

analogous

#57ABB2 #577DB2 #5F57B2

triadic

#577DB2 #B2577D #7DB257

tetradic

#577DB2 #B257AB #B28C57 #57B25F

square

#577DB2 #B257AB #B28C57 #57B25F

split-complementary

#577DB2 #B25F57 #ABB257

monochromatic

#2D4362 #40608C #577DB2 #819DC5 #ABBED8

Accessibility & contrast

On white

4.22

#577DB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#577DB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DB2

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DB2	#FFFFFF	#000000	##000000
##577DB2	1.00	4.22	4.98	4.98
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6880B4

Deuteranopia (green-blind)

#5D77B1

Tritanopia (blue-blind)

#2B8990

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #577db2;
/* rgb */ color: rgb(87, 125, 178);
/* oklch */ color: oklch(58.4% 0.093 256.8);

Tailwind

colors: {
  custom: {
    50: '#8ca2c9',
    500: '#577db2',
    950: '#000000',
  },
}

SCSS

$custom: #577db2;
$custom-light: #8ca2c9;
$custom-dark: #000000;

JSON

{
  "hex": "#577db2",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 178
  },
  "hsl": {
    "h": 214.945,
    "s": 37.143,
    "l": 51.961
  },
  "oklch": {
    "l": 0.58414,
    "c": 0.0926,
    "h": 256.8
  },
  "luminance": 0.19908
}

Semantic roles & 50–950 ramp

primary

#577DB2

secondary

#C6B69E

accent

#9D5BCD

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0F13

muted

#7D7E82

Preview Lab

Preview with #577DB2

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

Preview Lab → · Contrast checker → · Palette generator →