#576ECB#576ECB

#576ECB is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.6% C 0.145 H 270.7°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#576ECB
RGB	rgb(87, 110, 203)
HSL	hsl(228, 53%, 57%)
HSV	hsv(228, 57%, 80%)
CMYK	cmyk(57.1%, 45.8%, 0%, 20.4%)
CIE-LAB	lab(48.87, 19.18, -51.02)
CIE-LCH	lch(48.87, 54.50, 290.60°)
OKLab	oklab(56.63% 0.0018 -0.1454)
OKLCH	oklch(56.63% 0.145 270.7)
XYZ	xyz(20.2823, 17.4884, 58.7951)
Luminance	0.1749 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#576ECB #CBB457

analogous

#57A8CB #576ECB #7A57CB

triadic

#576ECB #CB576E #6ECB57

tetradic

#576ECB #CB57A8 #CBB457 #57CB7A

square

#576ECB #CB57A8 #CBB457 #57CB7A

split-complementary

#576ECB #CB7A57 #A8CB57

monochromatic

#283980 #364EAF #576ECB #8696D9 #B4BFE8

Accessibility & contrast

On white

4.67

#576ECB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#576ECB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #576ECB

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##576ECB	#FFFFFF	#000000	##FFFFFF
##576ECB	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4379CE

Deuteranopia (green-blind)

#336FC9

Tritanopia (blue-blind)

#038393

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #576ecb;
/* rgb */ color: rgb(87, 110, 203);
/* oklch */ color: oklch(56.6% 0.145 270.7);

Tailwind

colors: {
  custom: {
    50: '#8f97db',
    500: '#576ecb',
    950: '#000000',
  },
}

SCSS

$custom: #576ecb;
$custom-light: #8f97db;
$custom-dark: #000000;

JSON

{
  "hex": "#576ecb",
  "rgb": {
    "r": 87,
    "g": 110,
    "b": 203
  },
  "hsl": {
    "h": 228.103,
    "s": 52.727,
    "l": 56.863
  },
  "oklch": {
    "l": 0.56627,
    "c": 0.14545,
    "h": 270.7
  },
  "luminance": 0.1749
}

Semantic roles & 50–950 ramp

primary

#576ECB

secondary

#D7CDA7

accent

#BF4CDC

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #576ECB

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

Preview Lab → · Contrast checker → · Palette generator →