#3121AC#3121AC

#3121AC is a dark, highly saturated blue. Relative luminance 0.047; OKLCH L 38.3% C 0.204 H 275.9°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#3121AC
RGB	rgb(49, 33, 172)
HSL	hsl(247, 68%, 40%)
HSV	hsv(247, 81%, 67%)
CMYK	cmyk(71.5%, 80.8%, 0%, 32.5%)
CIE-LAB	lab(25.92, 49.35, -70.30)
CIE-LCH	lch(25.92, 85.89, 305.07°)
OKLab	oklab(38.32% 0.021 -0.2032)
OKLCH	oklch(38.32% 0.204 275.9)
XYZ	xyz(9.2544, 4.7184, 39.4447)
Luminance	0.0472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3121AC #9CAC21

analogous

#2157AC #3121AC #7621AC

triadic

#3121AC #AC3121 #21AC31

tetradic

#3121AC #AC2157 #9CAC21 #21AC76

square

#3121AC #AC2157 #9CAC21 #21AC76

split-complementary

#3121AC #AC7621 #57AC21

monochromatic

#140D45 #221779 #3121AC #4532D8 #7466E2

Accessibility & contrast

On white

10.80

#3121AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#3121AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3121AC

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3121AC	#FFFFFF	#000000	##FFFFFF
##3121AC	1.00	10.80	1.94	10.80
#FFFFFF	10.80	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043B0

Deuteranopia (green-blind)

#0037AA

Tritanopia (blue-blind)

#004C67

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #3121ac;
/* rgb */ color: rgb(49, 33, 172);
/* oklch */ color: oklch(38.3% 0.204 275.9);

Tailwind

colors: {
  custom: {
    50: '#7d61c6',
    500: '#3121ac',
    950: '#000000',
  },
}

SCSS

$custom: #3121ac;
$custom-light: #7d61c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3121ac",
  "rgb": {
    "r": 49,
    "g": 33,
    "b": 172
  },
  "hsl": {
    "h": 246.906,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.38325,
    "c": 0.20431,
    "h": 275.9
  },
  "luminance": 0.04719
}

Semantic roles & 50–950 ramp

primary

#3121AC

secondary

#BBC762

accent

#EB3DD7

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #3121AC

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

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