#577BED#577BED

#577BED is a mid, vivid blue. Relative luminance 0.223; OKLCH L 61.5% C 0.176 H 267.8°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#577BED
RGB	rgb(87, 123, 237)
HSL	hsl(226, 81%, 64%)
HSV	hsv(226, 63%, 93%)
CMYK	cmyk(63.3%, 48.1%, 0%, 7.1%)
CIE-LAB	lab(54.35, 22.57, -61.43)
CIE-LCH	lch(54.35, 65.44, 290.17°)
OKLab	oklab(61.46% -0.0068 -0.1759)
OKLCH	oklch(61.46% 0.176 267.8)
XYZ	xyz(26.2943, 22.3042, 83.0238)
Luminance	0.2231 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577BED #EDC957

analogous

#57C6ED #577BED #7E57ED

triadic

#577BED #ED577B #7BED57

tetradic

#577BED #ED57C6 #EDC957 #57ED7E

square

#577BED #ED57C6 #EDC957 #57ED7E

split-complementary

#577BED #ED7E57 #C6ED57

monochromatic

#143BB6 #2050E7 #577BED #8EA6F3 #C6D2F9

Accessibility & contrast

On white

3.85

#577BED on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#577BED on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577BED

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577BED	#FFFFFF	#000000	##000000
##577BED	1.00	3.85	5.46	5.46
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F89F1

Deuteranopia (green-blind)

#1D7CEB

Tritanopia (blue-blind)

#0095A9

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #577bed;
/* rgb */ color: rgb(87, 123, 237);
/* oklch */ color: oklch(61.5% 0.176 267.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#577bed",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 237
  },
  "hsl": {
    "h": 225.6,
    "s": 80.645,
    "l": 63.529
  },
  "oklch": {
    "l": 0.61461,
    "c": 0.17601,
    "h": 267.8
  },
  "luminance": 0.22307
}

Semantic roles & 50–950 ramp

primary

#577BED

secondary

#EADEB5

accent

#AA09DD

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #577BED

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

Preview Lab → · Contrast checker → · Palette generator →