#5B81DC#5B81DC

#5B81DC is a mid, vivid blue. Relative luminance 0.231; OKLCH L 61.8% C 0.144 H 265.3°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#5B81DC
RGB	rgb(91, 129, 220)
HSL	hsl(222, 65%, 61%)
HSV	hsv(222, 59%, 86%)
CMYK	cmyk(58.6%, 41.4%, 0%, 13.7%)
CIE-LAB	lab(55.16, 13.95, -50.60)
CIE-LCH	lch(55.16, 52.48, 285.41°)
OKLab	oklab(61.82% -0.0117 -0.1439)
OKLCH	oklch(61.82% 0.144 265.3)
XYZ	xyz(25.0785, 23.0899, 70.8315)
Luminance	0.2309 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B81DC #DCB65B

analogous

#5BC1DC #5B81DC #755BDC

triadic

#5B81DC #DC5B81 #81DC5B

tetradic

#5B81DC #DC5BC1 #DCB65B #5BDC75

square

#5B81DC #DC5BC1 #DCB65B #5BDC75

split-complementary

#5B81DC #DC755B #C1DC5B

monochromatic

#21459B #2C5CCE #5B81DC #8DA8E7 #C0CEF2

Accessibility & contrast

On white

3.74

#5B81DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.62

#5B81DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B81DC

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B81DC	#FFFFFF	#000000	##000000
##5B81DC	1.00	3.74	5.62	5.62
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.62	21.00	1.00	1.00
##000000	5.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#598AE0

Deuteranopia (green-blind)

#487FDA

Tritanopia (blue-blind)

#0095A4

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #5b81dc;
/* rgb */ color: rgb(91, 129, 220);
/* oklch */ color: oklch(61.8% 0.144 265.3);

Tailwind

colors: {
  custom: {
    50: '#93a5e7',
    500: '#5b81dc',
    950: '#000000',
  },
}

SCSS

$custom: #5b81dc;
$custom-light: #93a5e7;
$custom-dark: #000000;

JSON

{
  "hex": "#5b81dc",
  "rgb": {
    "r": 91,
    "g": 129,
    "b": 220
  },
  "hsl": {
    "h": 222.326,
    "s": 64.824,
    "l": 60.98
  },
  "oklch": {
    "l": 0.61824,
    "c": 0.14439,
    "h": 265.3
  },
  "luminance": 0.23092
}

Semantic roles & 50–950 ramp

primary

#5B81DC

secondary

#E2D3B1

accent

#9819CD

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #5B81DC

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

Preview Lab → · Contrast checker → · Palette generator →