#3123A8#3123A8

#3123A8 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 38.1% C 0.198 H 276.2°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#3123A8
RGB	rgb(49, 35, 168)
HSL	hsl(246, 66%, 40%)
HSV	hsv(246, 79%, 66%)
CMYK	cmyk(70.8%, 79.2%, 0%, 34.1%)
CIE-LAB	lab(25.81, 47.13, -68.07)
CIE-LCH	lch(25.81, 82.80, 304.70°)
OKLab	oklab(38.12% 0.0212 -0.1968)
OKLCH	oklch(38.12% 0.198 276.2)
XYZ	xyz(8.9332, 4.6813, 37.4710)
Luminance	0.0468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3123A8 #9AA823

analogous

#2357A8 #3123A8 #7423A8

triadic

#3123A8 #A83123 #23A831

tetradic

#3123A8 #A82357 #9AA823 #23A874

square

#3123A8 #A82357 #9AA823 #23A874

split-complementary

#3123A8 #A87423 #57A823

monochromatic

#130E43 #221875 #3123A8 #4534D5 #7366DF

Accessibility & contrast

On white

10.84

#3123A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#3123A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3123A8

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3123A8	#FFFFFF	#000000	##FFFFFF
##3123A8	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043AC

Deuteranopia (green-blind)

#0037A6

Tritanopia (blue-blind)

#004B65

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #3123a8;
/* rgb */ color: rgb(49, 35, 168);
/* oklch */ color: oklch(38.1% 0.198 276.2);

Tailwind

colors: {
  custom: {
    50: '#7c61c3',
    500: '#3123a8',
    950: '#000000',
  },
}

SCSS

$custom: #3123a8;
$custom-light: #7c61c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3123a8",
  "rgb": {
    "r": 49,
    "g": 35,
    "b": 168
  },
  "hsl": {
    "h": 246.316,
    "s": 65.517,
    "l": 39.804
  },
  "oklch": {
    "l": 0.38117,
    "c": 0.19792,
    "h": 276.2
  },
  "luminance": 0.04682
}

Semantic roles & 50–950 ramp

primary

#3123A8

secondary

#BAC562

accent

#E83FD7

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #3123A8

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

Preview Lab → · Contrast checker → · Palette generator →