#5381CB#5381CB

#5381CB is a mid, vivid blue. Relative luminance 0.219; OKLCH L 60.4% C 0.124 H 259.5°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#5381CB
RGB	rgb(83, 129, 203)
HSL	hsl(217, 54%, 56%)
HSV	hsv(217, 59%, 80%)
CMYK	cmyk(59.1%, 36.5%, 0%, 20.4%)
CIE-LAB	lab(53.87, 6.74, -43.08)
CIE-LCH	lch(53.87, 43.61, 278.89°)
OKLab	oklab(60.42% -0.0226 -0.1221)
OKLCH	oklch(60.42% 0.124 259.5)
XYZ	xyz(22.1933, 21.8494, 59.5361)
Luminance	0.2185 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5381CB #CB9D53

analogous

#53BDCB #5381CB #6153CB

triadic

#5381CB #CB5381 #81CB53

tetradic

#5381CB #CB53BD #CB9D53 #53CB61

square

#5381CB #CB53BD #CB9D53 #53CB61

split-complementary

#5381CB #CB6153 #BDCB53

monochromatic

#26487E #3462AD #5381CB #82A3D9 #B1C6E7

Accessibility & contrast

On white

3.91

#5381CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#5381CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5381CB

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5381CB	#FFFFFF	#000000	##000000
##5381CB	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6287CE

Deuteranopia (green-blind)

#527CC9

Tritanopia (blue-blind)

#00929C

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #5381cb;
/* rgb */ color: rgb(83, 129, 203);
/* oklch */ color: oklch(60.4% 0.124 259.5);

Tailwind

colors: {
  custom: {
    50: '#8da5db',
    500: '#5381cb',
    950: '#000000',
  },
}

SCSS

$custom: #5381cb;
$custom-light: #8da5db;
$custom-dark: #000000;

JSON

{
  "hex": "#5381cb",
  "rgb": {
    "r": 83,
    "g": 129,
    "b": 203
  },
  "hsl": {
    "h": 217,
    "s": 53.571,
    "l": 56.078
  },
  "oklch": {
    "l": 0.60419,
    "c": 0.12414,
    "h": 259.5
  },
  "luminance": 0.21851
}

Semantic roles & 50–950 ramp

primary

#5381CB

secondary

#D6C3A4

accent

#A54BDD

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #5381CB

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

Preview Lab → · Contrast checker → · Palette generator →