#3121A2#3121A2

#3121A2 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 37.2% C 0.193 H 277.1°. Best body text is #FFFFFF at 11.23:1 contrast (WCAG AA passes).

Color values

HEX	#3121A2
RGB	rgb(49, 33, 162)
HSL	hsl(247, 66%, 38%)
HSV	hsv(247, 80%, 64%)
CMYK	cmyk(69.8%, 79.6%, 0%, 36.5%)
CIE-LAB	lab(24.79, 46.27, -66.12)
CIE-LCH	lch(24.79, 80.70, 304.98°)
OKLab	oklab(37.21% 0.0237 -0.1911)
OKLCH	oklch(37.21% 0.193 277.1)
XYZ	xyz(8.3299, 4.3486, 34.5758)
Luminance	0.0435 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3121A2 #92A221

analogous

#2151A2 #3121A2 #7121A2

triadic

#3121A2 #A23121 #21A231

tetradic

#3121A2 #A22151 #92A221 #21A271

square

#3121A2 #A22151 #92A221 #21A271

split-complementary

#3121A2 #A27121 #51A221

monochromatic

#120C3C #22176F #3121A2 #412CD4 #6F5FDE

Accessibility & contrast

On white

11.23

#3121A2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#3121A2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3121A2

11.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3121A2	#FFFFFF	#000000	##FFFFFF
##3121A2	1.00	11.23	1.87	11.23
#FFFFFF	11.23	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040A6

Deuteranopia (green-blind)

#0035A0

Tritanopia (blue-blind)

#004861

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #3121a2;
/* rgb */ color: rgb(49, 33, 162);
/* oklch */ color: oklch(37.2% 0.193 277.1);

Tailwind

colors: {
  custom: {
    50: '#7b60bf',
    500: '#3121a2',
    950: '#000000',
  },
}

SCSS

$custom: #3121a2;
$custom-light: #7b60bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3121a2",
  "rgb": {
    "r": 49,
    "g": 33,
    "b": 162
  },
  "hsl": {
    "h": 247.442,
    "s": 66.154,
    "l": 38.235
  },
  "oklch": {
    "l": 0.37212,
    "c": 0.19254,
    "h": 277.1
  },
  "luminance": 0.04349
}

Semantic roles & 50–950 ramp

primary

#3121A2

secondary

#B6C35C

accent

#E93FD4

background

#F8F5FB

surface

#EFEAF7

border

#CAC6D0

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #3121A2

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

Preview Lab → · Contrast checker → · Palette generator →