#321FBB#321FBB

#321FBB is a dark, highly saturated blue. Relative luminance 0.052; OKLCH L 39.9% C 0.223 H 274.9°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#321FBB
RGB	rgb(50, 31, 187)
HSL	hsl(247, 72%, 43%)
HSV	hsv(247, 83%, 73%)
CMYK	cmyk(73.3%, 83.4%, 0%, 26.7%)
CIE-LAB	lab(27.42, 54.81, -76.77)
CIE-LCH	lch(27.42, 94.32, 305.52°)
OKLab	oklab(39.89% 0.0189 -0.2219)
OKLCH	oklch(39.89% 0.223 274.9)
XYZ	xyz(10.7721, 5.2449, 47.4487)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#321FBB #A8BB1F

analogous

#1F5ABB #321FBB #801FBB

triadic

#321FBB #BB321F #1FBB32

tetradic

#321FBB #BB1F5A #A8BB1F #1FBB80

square

#321FBB #BB1F5A #A8BB1F #1FBB80

split-complementary

#321FBB #BB801F #5ABB1F

monochromatic

#160E52 #241687 #321FBB #4D39DE #7C6EE7

Accessibility & contrast

On white

10.25

#321FBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#321FBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #321FBB

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##321FBB	#FFFFFF	#000000	##FFFFFF
##321FBB	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047BF

Deuteranopia (green-blind)

#003AB8

Tritanopia (blue-blind)

#005270

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #321fbb;
/* rgb */ color: rgb(50, 31, 187);
/* oklch */ color: oklch(39.9% 0.223 274.9);

Tailwind

colors: {
  custom: {
    50: '#8161d1',
    500: '#321fbb',
    950: '#000000',
  },
}

SCSS

$custom: #321fbb;
$custom-light: #8161d1;
$custom-dark: #000000;

JSON

{
  "hex": "#321fbb",
  "rgb": {
    "r": 50,
    "g": 31,
    "b": 187
  },
  "hsl": {
    "h": 247.308,
    "s": 71.56,
    "l": 42.745
  },
  "oklch": {
    "l": 0.39888,
    "c": 0.22272,
    "h": 274.9
  },
  "luminance": 0.05246
}

Semantic roles & 50–950 ramp

primary

#321FBB

secondary

#C1CD69

accent

#EE3AD8

background

#F8F5FD

surface

#F0EAFA

border

#CBC6D3

text

#0C0514

muted

#7D7983

Preview Lab

Preview with #321FBB

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

Preview Lab → · Contrast checker → · Palette generator →