#3040AC#3040AC

#3040AC is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.0% C 0.172 H 270.7°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#3040AC
RGB	rgb(48, 64, 172)
HSL	hsl(232, 56%, 43%)
HSV	hsv(232, 72%, 67%)
CMYK	cmyk(72.1%, 62.8%, 0%, 32.5%)
CIE-LAB	lab(32.42, 31.18, -59.60)
CIE-LCH	lch(32.42, 67.27, 297.61°)
OKLab	oklab(42.97% 0.0022 -0.1721)
OKLCH	oklch(42.97% 0.172 270.7)
XYZ	xyz(10.4962, 7.2727, 39.8723)
Luminance	0.0727 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3040AC #AC9C30

analogous

#307EAC #3040AC #5E30AC

triadic

#3040AC #AC3040 #40AC30

tetradic

#3040AC #AC307E #AC9C30 #30AC5E

square

#3040AC #AC307E #AC9C30 #30AC5E

split-complementary

#3040AC #AC5E30 #7EAC30

monochromatic

#151C4C #232E7C #3040AC #4C5DCD #7C88DA

Accessibility & contrast

On white

8.55

#3040AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#3040AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3040AC

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3040AC	#FFFFFF	#000000	##FFFFFF
##3040AC	1.00	8.55	2.45	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052AF

Deuteranopia (green-blind)

#0047AA

Tritanopia (blue-blind)

#005C70

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3040ac;
/* rgb */ color: rgb(48, 64, 172);
/* oklch */ color: oklch(43.0% 0.172 270.7);

Tailwind

colors: {
  custom: {
    50: '#7a74c6',
    500: '#3040ac',
    950: '#000000',
  },
}

SCSS

$custom: #3040ac;
$custom-light: #7a74c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3040ac",
  "rgb": {
    "r": 48,
    "g": 64,
    "b": 172
  },
  "hsl": {
    "h": 232.258,
    "s": 56.364,
    "l": 43.137
  },
  "oklch": {
    "l": 0.42973,
    "c": 0.17213,
    "h": 270.7
  },
  "luminance": 0.07274
}

Semantic roles & 50–950 ramp

primary

#3040AC

secondary

#C3B975

accent

#CC48E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #3040AC

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

Preview Lab → · Contrast checker → · Palette generator →