#3040AD#3040AD

#3040AD is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.1% C 0.173 H 270.7°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#3040AD
RGB	rgb(48, 64, 173)
HSL	hsl(232, 57%, 43%)
HSV	hsv(232, 72%, 68%)
CMYK	cmyk(72.3%, 63%, 0%, 32.2%)
CIE-LAB	lab(32.51, 31.54, -60.06)
CIE-LCH	lch(32.51, 67.84, 297.71°)
OKLab	oklab(43.06% 0.0021 -0.1735)
OKLCH	oklch(43.06% 0.173 270.7)
XYZ	xyz(10.5926, 7.3112, 40.3800)
Luminance	0.0731 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3040AD #AD9D30

analogous

#307EAD #3040AD #5E30AD

triadic

#3040AD #AD3040 #40AD30

tetradic

#3040AD #AD307E #AD9D30 #30AD5E

square

#3040AD #AD307E #AD9D30 #30AD5E

split-complementary

#3040AD #AD5E30 #7EAD30

monochromatic

#151D4D #232E7D #3040AD #4D5DCE #7D89DB

Accessibility & contrast

On white

8.53

#3040AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#3040AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3040AD

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3040AD	#FFFFFF	#000000	##FFFFFF
##3040AD	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B1

Deuteranopia (green-blind)

#0047AB

Tritanopia (blue-blind)

#005C70

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3040ad;
/* rgb */ color: rgb(48, 64, 173);
/* oklch */ color: oklch(43.1% 0.173 270.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#3040ad",
  "rgb": {
    "r": 48,
    "g": 64,
    "b": 173
  },
  "hsl": {
    "h": 232.32,
    "s": 56.561,
    "l": 43.333
  },
  "oklch": {
    "l": 0.43062,
    "c": 0.17347,
    "h": 270.7
  },
  "luminance": 0.07312
}

Semantic roles & 50–950 ramp

primary

#3040AD

secondary

#C3B975

accent

#CC48E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3040AD

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

Preview Lab → · Contrast checker → · Palette generator →