#3123A5#3123A5

#3123A5 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.8% C 0.194 H 276.5°. Best body text is #FFFFFF at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#3123A5
RGB	rgb(49, 35, 165)
HSL	hsl(246, 65%, 39%)
HSV	hsv(246, 79%, 65%)
CMYK	cmyk(70.3%, 78.8%, 0%, 35.3%)
CIE-LAB	lab(25.48, 46.19, -66.81)
CIE-LCH	lch(25.48, 81.22, 304.66°)
OKLab	oklab(37.79% 0.022 -0.1931)
OKLCH	oklch(37.79% 0.194 276.5)
XYZ	xyz(8.6570, 4.5708, 36.0161)
Luminance	0.0457 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3123A5 #97A523

analogous

#2356A5 #3123A5 #7223A5

triadic

#3123A5 #A53123 #23A531

tetradic

#3123A5 #A52356 #97A523 #23A572

square

#3123A5 #A52356 #97A523 #23A572

split-complementary

#3123A5 #A57223 #56A523

monochromatic

#130E40 #221873 #3123A5 #4332D3 #7164DE

Accessibility & contrast

On white

10.97

#3123A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#3123A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3123A5

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3123A5	#FFFFFF	#000000	##FFFFFF
##3123A5	1.00	10.97	1.91	10.97
#FFFFFF	10.97	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A9

Deuteranopia (green-blind)

#0037A3

Tritanopia (blue-blind)

#004A64

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #3123a5;
/* rgb */ color: rgb(49, 35, 165);
/* oklch */ color: oklch(37.8% 0.194 276.5);

Tailwind

colors: {
  custom: {
    50: '#7b61c1',
    500: '#3123a5',
    950: '#000000',
  },
}

SCSS

$custom: #3123a5;
$custom-light: #7b61c1;
$custom-dark: #000000;

JSON

{
  "hex": "#3123a5",
  "rgb": {
    "r": 49,
    "g": 35,
    "b": 165
  },
  "hsl": {
    "h": 246.462,
    "s": 65,
    "l": 39.216
  },
  "oklch": {
    "l": 0.37787,
    "c": 0.19435,
    "h": 276.5
  },
  "luminance": 0.04572
}

Semantic roles & 50–950 ramp

primary

#3123A5

secondary

#B9C460

accent

#E840D6

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #3123A5

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

Preview Lab → · Contrast checker → · Palette generator →