#3040A4#3040A4

#3040A4 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.3% C 0.161 H 270.8°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#3040A4
RGB	rgb(48, 64, 164)
HSL	hsl(232, 55%, 42%)
HSV	hsv(232, 71%, 64%)
CMYK	cmyk(70.7%, 61%, 0%, 35.7%)
CIE-LAB	lab(31.75, 28.25, -55.90)
CIE-LCH	lch(31.75, 62.64, 296.81°)
OKLab	oklab(42.27% 0.0024 -0.1613)
OKLCH	oklch(42.27% 0.161 270.8)
XYZ	xyz(9.7509, 6.9745, 35.9471)
Luminance	0.0698 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3040A4 #A49430

analogous

#307AA4 #3040A4 #5A30A4

triadic

#3040A4 #A43040 #40A430

tetradic

#3040A4 #A4307A #A49430 #30A45A

square

#3040A4 #A4307A #A49430 #30A45A

split-complementary

#3040A4 #A45A30 #7AA430

monochromatic

#141B45 #222E75 #3040A4 #485AC9 #7784D7

Accessibility & contrast

On white

8.77

#3040A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#3040A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3040A4

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3040A4	#FFFFFF	#000000	##FFFFFF
##3040A4	1.00	8.77	2.40	8.77
#FFFFFF	8.77	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A7

Deuteranopia (green-blind)

#0045A2

Tritanopia (blue-blind)

#00596B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3040a4;
/* rgb */ color: rgb(48, 64, 164);
/* oklch */ color: oklch(42.3% 0.161 270.8);

Tailwind

colors: {
  custom: {
    50: '#7874c0',
    500: '#3040a4',
    950: '#000000',
  },
}

SCSS

$custom: #3040a4;
$custom-light: #7874c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3040a4",
  "rgb": {
    "r": 48,
    "g": 64,
    "b": 164
  },
  "hsl": {
    "h": 231.724,
    "s": 54.717,
    "l": 41.569
  },
  "oklch": {
    "l": 0.42268,
    "c": 0.16128,
    "h": 270.8
  },
  "luminance": 0.06976
}

Semantic roles & 50–950 ramp

primary

#3040A4

secondary

#BFB470

accent

#CA4ADE

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #3040A4

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

Preview Lab → · Contrast checker → · Palette generator →