#577AEC#577AEC

#577AEC is a mid, vivid blue. Relative luminance 0.220; OKLCH L 61.2% C 0.176 H 268.1°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#577AEC
RGB	rgb(87, 122, 236)
HSL	hsl(226, 80%, 63%)
HSV	hsv(226, 63%, 93%)
CMYK	cmyk(63.1%, 48.3%, 0%, 7.5%)
CIE-LAB	lab(54.03, 22.84, -61.39)
CIE-LCH	lch(54.03, 65.50, 290.41°)
OKLab	oklab(61.2% -0.006 -0.1758)
OKLCH	oklch(61.2% 0.176 268.1)
XYZ	xyz(26.0252, 21.9991, 82.2154)
Luminance	0.2200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577AEC #ECC957

analogous

#57C4EC #577AEC #7E57EC

triadic

#577AEC #EC577A #7AEC57

tetradic

#577AEC #EC57C4 #ECC957 #57EC7E

square

#577AEC #EC57C4 #ECC957 #57EC7E

split-complementary

#577AEC #EC7E57 #C4EC57

monochromatic

#143AB4 #204EE6 #577AEC #8EA6F2 #C5D1F8

Accessibility & contrast

On white

3.89

#577AEC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#577AEC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577AEC

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577AEC	#FFFFFF	#000000	##000000
##577AEC	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E88F0

Deuteranopia (green-blind)

#1C7BEA

Tritanopia (blue-blind)

#0094A8

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #577aec;
/* rgb */ color: rgb(87, 122, 236);
/* oklch */ color: oklch(61.2% 0.176 268.1);

Tailwind

colors: {
  custom: {
    50: '#94a0f3',
    500: '#577aec',
    950: '#000000',
  },
}

SCSS

$custom: #577aec;
$custom-light: #94a0f3;
$custom-dark: #000000;

JSON

{
  "hex": "#577aec",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 236
  },
  "hsl": {
    "h": 225.906,
    "s": 79.679,
    "l": 63.333
  },
  "oklch": {
    "l": 0.61196,
    "c": 0.17588,
    "h": 268.1
  },
  "luminance": 0.22001
}

Semantic roles & 50–950 ramp

primary

#577AEC

secondary

#EADDB5

accent

#AB0ADC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #577AEC

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

Preview Lab → · Contrast checker → · Palette generator →