#5F66DB#5F66DB

#5F66DB is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.7% C 0.176 H 276.6°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#5F66DB
RGB	rgb(95, 102, 219)
HSL	hsl(237, 63%, 62%)
HSV	hsv(237, 57%, 86%)
CMYK	cmyk(56.6%, 53.4%, 0%, 14.1%)
CIE-LAB	lab(48.32, 30.92, -60.99)
CIE-LCH	lch(48.32, 68.38, 296.88°)
OKLab	oklab(56.67% 0.0203 -0.1747)
OKLCH	oklch(56.67% 0.176 276.6)
XYZ	xyz(22.2528, 17.0485, 69.1222)
Luminance	0.1705 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5F66DB #DBD45F

analogous

#5FA4DB #5F66DB #965FDB

triadic

#5F66DB #DB5F66 #66DB5F

tetradic

#5F66DB #DB5FA4 #DBD45F #5FDB96

square

#5F66DB #DB5FA4 #DBD45F #5FDB96

split-complementary

#5F66DB #DB965F #A4DB5F

monochromatic

#232A9C #2E37CE #5F66DB #9196E6 #C3C6F1

Accessibility & contrast

On white

4.76

#5F66DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#5F66DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5F66DB

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5F66DB	#FFFFFF	#000000	##FFFFFF
##5F66DB	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D78DF

Deuteranopia (green-blind)

#006ED9

Tritanopia (blue-blind)

#148197

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #5f66db;
/* rgb */ color: rgb(95, 102, 219);
/* oklch */ color: oklch(56.7% 0.176 276.6);

Tailwind

colors: {
  custom: {
    50: '#9691e7',
    500: '#5f66db',
    950: '#000000',
  },
}

SCSS

$custom: #5f66db;
$custom-light: #9691e7;
$custom-dark: #000000;

JSON

{
  "hex": "#5f66db",
  "rgb": {
    "r": 95,
    "g": 102,
    "b": 219
  },
  "hsl": {
    "h": 236.613,
    "s": 63.265,
    "l": 61.569
  },
  "oklch": {
    "l": 0.56666,
    "c": 0.17584,
    "h": 276.6
  },
  "luminance": 0.1705
}

Semantic roles & 50–950 ramp

primary

#5F66DB

secondary

#E2DFB4

accent

#C11ACB

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #5F66DB

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

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