#5183FD#5183FD

#5183FD is a light, vivid blue. Relative luminance 0.251; OKLCH L 63.8% C 0.190 H 264.8°. Best body text is #000000 at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#5183FD
RGB	rgb(81, 131, 253)
HSL	hsl(223, 98%, 65%)
HSV	hsv(223, 68%, 99%)
CMYK	cmyk(68%, 48.2%, 0%, 0.8%)
CIE-LAB	lab(57.14, 22.23, -65.81)
CIE-LCH	lch(57.14, 69.46, 288.66°)
OKLab	oklab(63.83% -0.0172 -0.1888)
OKLCH	oklch(63.83% 0.19 264.8)
XYZ	xyz(29.2330, 25.0708, 96.2080)
Luminance	0.2507 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5183FD #FDCB51

analogous

#51D9FD #5183FD #7551FD

triadic

#5183FD #FD5183 #83FD51

tetradic

#5183FD #FD51D9 #FDCB51 #51FD75

square

#5183FD #FD51D9 #FDCB51 #51FD75

split-complementary

#5183FD #FD7551 #D9FD51

monochromatic

#023FD1 #1458FC #5183FD #8EAEFE #CAD9FE

Accessibility & contrast

On white

3.49

#5183FD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.01

#5183FD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5183FD

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5183FD	#FFFFFF	#000000	##000000
##5183FD	1.00	3.49	6.01	6.01
#FFFFFF	3.49	1.00	21.00	21.00
#000000	6.01	21.00	1.00	1.00
##000000	6.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F92FF

Deuteranopia (green-blind)

#0582FB

Tritanopia (blue-blind)

#00A0B4

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #5183fd;
/* rgb */ color: rgb(81, 131, 253);
/* oklch */ color: oklch(63.8% 0.190 264.8);

Tailwind

colors: {
  custom: {
    50: '#94a6ff',
    500: '#5183fd',
    950: '#000000',
  },
}

SCSS

$custom: #5183fd;
$custom-light: #94a6ff;
$custom-dark: #000000;

JSON

{
  "hex": "#5183fd",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 253
  },
  "hsl": {
    "h": 222.558,
    "s": 97.727,
    "l": 65.49
  },
  "oklch": {
    "l": 0.63833,
    "c": 0.18955,
    "h": 264.8
  },
  "luminance": 0.25074
}

Semantic roles & 50–950 ramp

primary

#5183FD

secondary

#F2E1B8

accent

#A300E6

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0F0F18

muted

#7E7F86

Preview Lab

Preview with #5183FD

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

Preview Lab → · Contrast checker → · Palette generator →