#577AE7#577AE7

#577AE7 is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.9% C 0.169 H 267.8°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#577AE7
RGB	rgb(87, 122, 231)
HSL	hsl(225, 75%, 62%)
HSV	hsv(225, 62%, 91%)
CMYK	cmyk(62.3%, 47.2%, 0%, 9.4%)
CIE-LAB	lab(53.72, 21.15, -59.08)
CIE-LCH	lch(53.72, 62.76, 289.70°)
OKLab	oklab(60.87% -0.0066 -0.169)
OKLCH	oklch(60.87% 0.169 267.8)
XYZ	xyz(25.3089, 21.7126, 78.4430)
Luminance	0.2172 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577AE7 #E7C457

analogous

#57C2E7 #577AE7 #7C57E7

triadic

#577AE7 #E7577A #7AE757

tetradic

#577AE7 #E757C2 #E7C457 #57E77C

square

#577AE7 #E757C2 #E7C457 #57E77C

split-complementary

#577AE7 #E77C57 #C2E757

monochromatic

#183CAB #2150DF #577AE7 #8DA4EF #C2CFF6

Accessibility & contrast

On white

3.93

#577AE7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#577AE7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577AE7

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577AE7	#FFFFFF	#000000	##000000
##577AE7	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4387EB

Deuteranopia (green-blind)

#277AE5

Tritanopia (blue-blind)

#0093A5

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #577ae7;
/* rgb */ color: rgb(87, 122, 231);
/* oklch */ color: oklch(60.9% 0.169 267.8);

Tailwind

colors: {
  custom: {
    50: '#93a0ef',
    500: '#577ae7',
    950: '#000000',
  },
}

SCSS

$custom: #577ae7;
$custom-light: #93a0ef;
$custom-dark: #000000;

JSON

{
  "hex": "#577ae7",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 231
  },
  "hsl": {
    "h": 225.417,
    "s": 75,
    "l": 62.353
  },
  "oklch": {
    "l": 0.60866,
    "c": 0.16913,
    "h": 267.8
  },
  "luminance": 0.21715
}

Semantic roles & 50–950 ramp

primary

#577AE7

secondary

#E7DAB3

accent

#A60ED7

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #577AE7

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

Preview Lab → · Contrast checker → · Palette generator →