#3040B6#3040B6

#3040B6 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.9% C 0.185 H 270.5°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#3040B6
RGB	rgb(48, 64, 182)
HSL	hsl(233, 58%, 45%)
HSV	hsv(233, 74%, 71%)
CMYK	cmyk(73.6%, 64.8%, 0%, 28.6%)
CIE-LAB	lab(33.29, 34.80, -64.13)
CIE-LCH	lch(33.29, 72.96, 298.48°)
OKLab	oklab(43.88% 0.0017 -0.1854)
OKLCH	oklch(43.88% 0.185 270.5)
XYZ	xyz(11.4929, 7.6714, 45.1219)
Luminance	0.0767 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.53

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3040B6 #B6A630

analogous

#3083B6 #3040B6 #6330B6

triadic

#3040B6 #B63040 #40B630

tetradic

#3040B6 #B63083 #B6A630 #30B663

square

#3040B6 #B63083 #B6A630 #30B663

split-complementary

#3040B6 #B66330 #83B630

monochromatic

#161E55 #232F86 #3040B6 #5261D1 #828DDE

Accessibility & contrast

On white

8.29

#3040B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3040B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3040B6

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3040B6	#FFFFFF	#000000	##FFFFFF
##3040B6	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BA

Deuteranopia (green-blind)

#0048B4

Tritanopia (blue-blind)

#005F75

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3040b6;
/* rgb */ color: rgb(48, 64, 182);
/* oklch */ color: oklch(43.9% 0.185 270.5);

Tailwind

colors: {
  custom: {
    50: '#7c75cd',
    500: '#3040b6',
    950: '#000000',
  },
}

SCSS

$custom: #3040b6;
$custom-light: #7c75cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3040b6",
  "rgb": {
    "r": 48,
    "g": 64,
    "b": 182
  },
  "hsl": {
    "h": 232.836,
    "s": 58.261,
    "l": 45.098
  },
  "oklch": {
    "l": 0.4388,
    "c": 0.18539,
    "h": 270.5
  },
  "luminance": 0.07673
}

Semantic roles & 50–950 ramp

primary

#3040B6

secondary

#C7BE7B

accent

#CF46E1

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #3040B6

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

Preview Lab → · Contrast checker → · Palette generator →