#3121A9#3121A9

#3121A9 is a dark, highly saturated blue. Relative luminance 0.046; OKLCH L 38.0% C 0.201 H 276.2°. Best body text is #FFFFFF at 10.93:1 contrast (WCAG AA passes).

Color values

HEX	#3121A9
RGB	rgb(49, 33, 169)
HSL	hsl(247, 67%, 40%)
HSV	hsv(247, 80%, 66%)
CMYK	cmyk(71%, 80.5%, 0%, 33.7%)
CIE-LAB	lab(25.58, 48.43, -69.06)
CIE-LCH	lch(25.58, 84.35, 305.04°)
OKLab	oklab(37.99% 0.0218 -0.1996)
OKLCH	oklch(37.99% 0.201 276.2)
XYZ	xyz(8.9696, 4.6044, 37.9445)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3121A9 #99A921

analogous

#2155A9 #3121A9 #7521A9

triadic

#3121A9 #A93121 #21A931

tetradic

#3121A9 #A92155 #99A921 #21A975

square

#3121A9 #A92155 #99A921 #21A975

split-complementary

#3121A9 #A97521 #55A921

monochromatic

#130D43 #221776 #3121A9 #4431D7 #7264E1

Accessibility & contrast

On white

10.93

#3121A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#3121A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3121A9

10.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3121A9	#FFFFFF	#000000	##FFFFFF
##3121A9	1.00	10.93	1.92	10.93
#FFFFFF	10.93	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042AD

Deuteranopia (green-blind)

#0037A7

Tritanopia (blue-blind)

#004B65

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #3121a9;
/* rgb */ color: rgb(49, 33, 169);
/* oklch */ color: oklch(38.0% 0.201 276.2);

Tailwind

colors: {
  custom: {
    50: '#7c60c4',
    500: '#3121a9',
    950: '#000000',
  },
}

SCSS

$custom: #3121a9;
$custom-light: #7c60c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3121a9",
  "rgb": {
    "r": 49,
    "g": 33,
    "b": 169
  },
  "hsl": {
    "h": 247.059,
    "s": 67.327,
    "l": 39.608
  },
  "oklch": {
    "l": 0.37989,
    "c": 0.20081,
    "h": 276.2
  },
  "luminance": 0.04605
}

Semantic roles & 50–950 ramp

primary

#3121A9

secondary

#BAC660

accent

#EA3ED6

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #3121A9

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

Preview Lab → · Contrast checker → · Palette generator →