#3123A4#3123A4

#3123A4 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.7% C 0.193 H 276.6°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#3123A4
RGB	rgb(49, 35, 164)
HSL	hsl(247, 65%, 39%)
HSV	hsv(247, 79%, 64%)
CMYK	cmyk(70.1%, 78.7%, 0%, 35.7%)
CIE-LAB	lab(25.37, 45.88, -66.38)
CIE-LCH	lch(25.37, 80.69, 304.65°)
OKLab	oklab(37.68% 0.0222 -0.1919)
OKLCH	oklch(37.68% 0.193 276.6)
XYZ	xyz(8.5663, 4.5346, 35.5386)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3123A4 #96A423

analogous

#2356A4 #3123A4 #7223A4

triadic

#3123A4 #A43123 #23A431

tetradic

#3123A4 #A42356 #96A423 #23A472

square

#3123A4 #A42356 #96A423 #23A472

split-complementary

#3123A4 #A47223 #56A423

monochromatic

#130D3F #221872 #3123A4 #4331D3 #7164DE

Accessibility & contrast

On white

11.01

#3123A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#3123A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3123A4

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3123A4	#FFFFFF	#000000	##FFFFFF
##3123A4	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041A8

Deuteranopia (green-blind)

#0036A2

Tritanopia (blue-blind)

#004A63

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #3123a4;
/* rgb */ color: rgb(49, 35, 164);
/* oklch */ color: oklch(37.7% 0.193 276.6);

Tailwind

colors: {
  custom: {
    50: '#7b61c0',
    500: '#3123a4',
    950: '#000000',
  },
}

SCSS

$custom: #3123a4;
$custom-light: #7b61c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3123a4",
  "rgb": {
    "r": 49,
    "g": 35,
    "b": 164
  },
  "hsl": {
    "h": 246.512,
    "s": 64.824,
    "l": 39.02
  },
  "oklch": {
    "l": 0.37678,
    "c": 0.19315,
    "h": 276.6
  },
  "luminance": 0.04535
}

Semantic roles & 50–950 ramp

primary

#3123A4

secondary

#B8C360

accent

#E840D6

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #3123A4

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

Preview Lab → · Contrast checker → · Palette generator →