#3040A3#3040A3

#3040A3 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.2% C 0.160 H 270.8°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#3040A3
RGB	rgb(48, 64, 163)
HSL	hsl(232, 55%, 41%)
HSV	hsv(232, 71%, 64%)
CMYK	cmyk(70.6%, 60.7%, 0%, 36.1%)
CIE-LAB	lab(31.67, 27.88, -55.43)
CIE-LCH	lch(31.67, 62.05, 296.70°)
OKLab	oklab(42.18% 0.0024 -0.1599)
OKLCH	oklch(42.18% 0.16 270.8)
XYZ	xyz(9.6609, 6.9386, 35.4734)
Luminance	0.0694 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3040A3 #A39330

analogous

#307AA3 #3040A3 #5A30A3

triadic

#3040A3 #A33040 #40A330

tetradic

#3040A3 #A3307A #A39330 #30A35A

square

#3040A3 #A3307A #A39330 #30A35A

split-complementary

#3040A3 #A35A30 #7AA330

monochromatic

#141B44 #222D74 #3040A3 #4759C9 #7784D7

Accessibility & contrast

On white

8.79

#3040A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#3040A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3040A3

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3040A3	#FFFFFF	#000000	##FFFFFF
##3040A3	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A6

Deuteranopia (green-blind)

#0045A1

Tritanopia (blue-blind)

#00596B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3040a3;
/* rgb */ color: rgb(48, 64, 163);
/* oklch */ color: oklch(42.2% 0.160 270.8);

Tailwind

colors: {
  custom: {
    50: '#7874bf',
    500: '#3040a3',
    950: '#000000',
  },
}

SCSS

$custom: #3040a3;
$custom-light: #7874bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3040a3",
  "rgb": {
    "r": 48,
    "g": 64,
    "b": 163
  },
  "hsl": {
    "h": 231.652,
    "s": 54.502,
    "l": 41.373
  },
  "oklch": {
    "l": 0.42182,
    "c": 0.1599,
    "h": 270.8
  },
  "luminance": 0.0694
}

Semantic roles & 50–950 ramp

primary

#3040A3

secondary

#BFB470

accent

#C94ADE

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #3040A3

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

Preview Lab → · Contrast checker → · Palette generator →