#5783EF#5783EF

#5783EF is a light, vivid blue. Relative luminance 0.245; OKLCH L 63.2% C 0.169 H 265.2°. Best body text is #000000 at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#5783EF
RGB	rgb(87, 131, 239)
HSL	hsl(223, 83%, 64%)
HSV	hsv(223, 64%, 94%)
CMYK	cmyk(63.6%, 45.2%, 0%, 6.3%)
CIE-LAB	lab(56.57, 18.37, -58.97)
CIE-LCH	lch(56.57, 61.76, 287.30°)
OKLab	oklab(63.2% -0.0141 -0.1685)
OKLCH	oklch(63.2% 0.169 265.2)
XYZ	xyz(27.6214, 24.4883, 84.9157)
Luminance	0.2449 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5783EF #EFC357

analogous

#57CFEF #5783EF #7757EF

triadic

#5783EF #EF5783 #83EF57

tetradic

#5783EF #EF57CF #EFC357 #57EF77

square

#5783EF #EF57CF #EFC357 #57EF77

split-complementary

#5783EF #EF7757 #CFEF57

monochromatic

#1242BA #1F5AEA #5783EF #8FACF4 #C7D5FA

Accessibility & contrast

On white

3.56

#5783EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.90

#5783EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5783EF

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5783EF	#FFFFFF	#000000	##000000
##5783EF	1.00	3.56	5.90	5.90
#FFFFFF	3.56	1.00	21.00	21.00
#000000	5.90	21.00	1.00	1.00
##000000	5.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E8FF3

Deuteranopia (green-blind)

#3381ED

Tritanopia (blue-blind)

#009CAD

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #5783ef;
/* rgb */ color: rgb(87, 131, 239);
/* oklch */ color: oklch(63.2% 0.169 265.2);

Tailwind

colors: {
  custom: {
    50: '#94a6f5',
    500: '#5783ef',
    950: '#000000',
  },
}

SCSS

$custom: #5783ef;
$custom-light: #94a6f5;
$custom-dark: #000000;

JSON

{
  "hex": "#5783ef",
  "rgb": {
    "r": 87,
    "g": 131,
    "b": 239
  },
  "hsl": {
    "h": 222.632,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.63199,
    "c": 0.16913,
    "h": 265.2
  },
  "luminance": 0.24491
}

Semantic roles & 50–950 ramp

primary

#5783EF

secondary

#ECDCB6

accent

#A006DF

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5783EF

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

Preview Lab → · Contrast checker → · Palette generator →