#3123A9#3123A9

#3123A9 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 38.2% C 0.199 H 276.0°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#3123A9
RGB	rgb(49, 35, 169)
HSL	hsl(246, 66%, 40%)
HSV	hsv(246, 79%, 66%)
CMYK	cmyk(71%, 79.3%, 0%, 33.7%)
CIE-LAB	lab(25.92, 47.44, -68.49)
CIE-LCH	lch(25.92, 83.32, 304.71°)
OKLab	oklab(38.23% 0.021 -0.198)
OKLCH	oklch(38.23% 0.199 276)
XYZ	xyz(9.0267, 4.7188, 37.9635)
Luminance	0.0472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3123A9 #9BA923

analogous

#2358A9 #3123A9 #7423A9

triadic

#3123A9 #A93123 #23A931

tetradic

#3123A9 #A92358 #9BA923 #23A974

square

#3123A9 #A92358 #9BA923 #23A974

split-complementary

#3123A9 #A97423 #58A923

monochromatic

#140E44 #221976 #3123A9 #4534D5 #7467DF

Accessibility & contrast

On white

10.80

#3123A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#3123A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3123A9

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3123A9	#FFFFFF	#000000	##FFFFFF
##3123A9	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)

#0043AD

Deuteranopia (green-blind)

#0037A7

Tritanopia (blue-blind)

#004C66

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #3123a9;
/* rgb */ color: rgb(49, 35, 169);
/* oklch */ color: oklch(38.2% 0.199 276.0);

Tailwind

colors: {
  custom: {
    50: '#7c61c4',
    500: '#3123a9',
    950: '#000000',
  },
}

SCSS

$custom: #3123a9;
$custom-light: #7c61c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3123a9",
  "rgb": {
    "r": 49,
    "g": 35,
    "b": 169
  },
  "hsl": {
    "h": 246.269,
    "s": 65.686,
    "l": 40
  },
  "oklch": {
    "l": 0.38227,
    "c": 0.19911,
    "h": 276
  },
  "luminance": 0.0472
}

Semantic roles & 50–950 ramp

primary

#3123A9

secondary

#BBC563

accent

#E93FD7

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #3123A9

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

Preview Lab → · Contrast checker → · Palette generator →