#577EB4#577EB4

#577EB4 is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.7% C 0.094 H 256.7°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#577EB4
RGB	rgb(87, 126, 180)
HSL	hsl(215, 38%, 52%)
HSV	hsv(215, 52%, 71%)
CMYK	cmyk(51.7%, 30%, 0%, 29.4%)
CIE-LAB	lab(52.11, 1.96, -32.69)
CIE-LCH	lch(52.11, 32.75, 273.43°)
OKLab	oklab(58.74% -0.0217 -0.0918)
OKLCH	oklch(58.74% 0.094 256.7)
XYZ	xyz(19.6267, 20.2418, 46.0440)
Luminance	0.2024 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EB4 #B48D57

analogous

#57ADB4 #577EB4 #5F57B4

triadic

#577EB4 #B4577E #7EB457

tetradic

#577EB4 #B457AD #B48D57 #57B45F

square

#577EB4 #B457AD #B48D57 #57B45F

split-complementary

#577EB4 #B45F57 #ADB457

monochromatic

#2D4464 #40618E #577EB4 #819EC7 #ACBFDA

Accessibility & contrast

On white

4.16

#577EB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#577EB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EB4

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EB4	#FFFFFF	#000000	##000000
##577EB4	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6981B6

Deuteranopia (green-blind)

#5D78B3

Tritanopia (blue-blind)

#298A91

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #577eb4;
/* rgb */ color: rgb(87, 126, 180);
/* oklch */ color: oklch(58.7% 0.094 256.7);

Tailwind

colors: {
  custom: {
    50: '#8ca3ca',
    500: '#577eb4',
    950: '#000000',
  },
}

SCSS

$custom: #577eb4;
$custom-light: #8ca3ca;
$custom-dark: #000000;

JSON

{
  "hex": "#577eb4",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 180
  },
  "hsl": {
    "h": 214.839,
    "s": 38.272,
    "l": 52.353
  },
  "oklch": {
    "l": 0.5874,
    "c": 0.09432,
    "h": 256.7
  },
  "luminance": 0.20243
}

Semantic roles & 50–950 ramp

primary

#577EB4

secondary

#C8B79F

accent

#9D5ACE

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0C0F13

muted

#7D7F82

Preview Lab

Preview with #577EB4

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

Preview Lab → · Contrast checker → · Palette generator →