#3121AF#3121AF

#3121AF is a dark, highly saturated blue. Relative luminance 0.048; OKLCH L 38.7% C 0.208 H 275.6°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#3121AF
RGB	rgb(49, 33, 175)
HSL	hsl(247, 68%, 41%)
HSV	hsv(247, 81%, 69%)
CMYK	cmyk(72%, 81.1%, 0%, 31.4%)
CIE-LAB	lab(26.26, 50.26, -71.54)
CIE-LCH	lch(26.26, 87.43, 305.09°)
OKLab	oklab(38.66% 0.0202 -0.2068)
OKLCH	oklch(38.66% 0.208 275.6)
XYZ	xyz(9.5458, 4.8349, 40.9793)
Luminance	0.0484 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3121AF #9FAF21

analogous

#2158AF #3121AF #7821AF

triadic

#3121AF #AF3121 #21AF31

tetradic

#3121AF #AF2158 #9FAF21 #21AF78

square

#3121AF #AF2158 #9FAF21 #21AF78

split-complementary

#3121AF #AF7821 #58AF21

monochromatic

#140E48 #23177C #3121AF #4734D9 #7668E3

Accessibility & contrast

On white

10.68

#3121AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#3121AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3121AF

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3121AF	#FFFFFF	#000000	##FFFFFF
##3121AF	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044B3

Deuteranopia (green-blind)

#0038AD

Tritanopia (blue-blind)

#004D69

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #3121af;
/* rgb */ color: rgb(49, 33, 175);
/* oklch */ color: oklch(38.7% 0.208 275.6);

Tailwind

colors: {
  custom: {
    50: '#7e61c8',
    500: '#3121af',
    950: '#000000',
  },
}

SCSS

$custom: #3121af;
$custom-light: #7e61c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3121af",
  "rgb": {
    "r": 49,
    "g": 33,
    "b": 175
  },
  "hsl": {
    "h": 246.761,
    "s": 68.269,
    "l": 40.784
  },
  "oklch": {
    "l": 0.38662,
    "c": 0.2078,
    "h": 275.6
  },
  "luminance": 0.04836
}

Semantic roles & 50–950 ramp

primary

#3121AF

secondary

#BDC864

accent

#EB3DD7

background

#F8F5FC

surface

#F0EAF8

border

#CBC6D1

text

#0C0513

muted

#7D7982

Preview Lab

Preview with #3121AF

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

Preview Lab → · Contrast checker → · Palette generator →