#5182DD#5182DD

#5182DD is a mid, vivid blue. Relative luminance 0.229; OKLCH L 61.6% C 0.148 H 261.7°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#5182DD
RGB	rgb(81, 130, 221)
HSL	hsl(219, 67%, 59%)
HSV	hsv(219, 63%, 87%)
CMYK	cmyk(63.3%, 41.2%, 0%, 13.3%)
CIE-LAB	lab(55.00, 11.83, -51.45)
CIE-LCH	lch(55.00, 52.79, 282.95°)
OKLab	oklab(61.59% -0.0214 -0.1466)
OKLCH	oklch(61.59% 0.148 261.7)
XYZ	xyz(24.4225, 22.9328, 71.5320)
Luminance	0.2293 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5182DD #DDAC51

analogous

#51C8DD #5182DD #6651DD

triadic

#5182DD #DD5182 #82DD51

tetradic

#5182DD #DD51C8 #DDAC51 #51DD66

square

#5182DD #DD51C8 #DDAC51 #51DD66

split-complementary

#5182DD #DD6651 #C8DD51

monochromatic

#1D4896 #2760C9 #5182DD #84A7E7 #B7CCF1

Accessibility & contrast

On white

3.76

#5182DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#5182DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5182DD

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5182DD	#FFFFFF	#000000	##000000
##5182DD	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#598BE1

Deuteranopia (green-blind)

#447EDB

Tritanopia (blue-blind)

#0097A5

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #5182dd;
/* rgb */ color: rgb(81, 130, 221);
/* oklch */ color: oklch(61.6% 0.148 261.7);

Tailwind

colors: {
  custom: {
    50: '#8ea5e8',
    500: '#5182dd',
    950: '#000000',
  },
}

SCSS

$custom: #5182dd;
$custom-light: #8ea5e8;
$custom-dark: #000000;

JSON

{
  "hex": "#5182dd",
  "rgb": {
    "r": 81,
    "g": 130,
    "b": 221
  },
  "hsl": {
    "h": 219,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.61585,
    "c": 0.14812,
    "h": 261.7
  },
  "luminance": 0.22935
}

Semantic roles & 50–950 ramp

primary

#5182DD

secondary

#E0CDAA

accent

#AE3EEA

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #5182DD

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

Preview Lab → · Contrast checker → · Palette generator →