#3040DB#3040DB

#3040DB is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 47.4% C 0.232 H 269.6°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#3040DB
RGB	rgb(48, 64, 219)
HSL	hsl(234, 70%, 52%)
HSV	hsv(234, 78%, 86%)
CMYK	cmyk(78.1%, 70.8%, 0%, 14.1%)
CIE-LAB	lab(36.76, 47.72, -79.98)
CIE-LCH	lch(36.76, 93.13, 300.82°)
OKLab	oklab(47.45% -0.0017 -0.2317)
OKLCH	oklch(47.45% 0.232 269.6)
XYZ	xyz(15.8341, 9.4078, 67.9855)
Luminance	0.0941 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3040DB #DBCB30

analogous

#3095DB #3040DB #7630DB

triadic

#3040DB #DB3040 #40DB30

tetradic

#3040DB #DB3095 #DBCB30 #30DB76

square

#3040DB #DB3095 #DBCB30 #30DB76

split-complementary

#3040DB #DB7630 #95DB30

monochromatic

#151F7B #1E2CAF #3040DB #6470E4 #98A0ED

Accessibility & contrast

On white

7.29

#3040DB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#3040DB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3040DB

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3040DB	#FFFFFF	#000000	##FFFFFF
##3040DB	1.00	7.29	2.88	7.29
#FFFFFF	7.29	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FE0

Deuteranopia (green-blind)

#004ED8

Tritanopia (blue-blind)

#006C89

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3040db;
/* rgb */ color: rgb(48, 64, 219);
/* oklch */ color: oklch(47.4% 0.232 269.6);

Tailwind

colors: {
  custom: {
    50: '#8576e8',
    500: '#3040db',
    950: '#000000',
  },
}

SCSS

$custom: #3040db;
$custom-light: #8576e8;
$custom-dark: #000000;

JSON

{
  "hex": "#3040db",
  "rgb": {
    "r": 48,
    "g": 64,
    "b": 219
  },
  "hsl": {
    "h": 234.386,
    "s": 70.37,
    "l": 52.353
  },
  "oklch": {
    "l": 0.47446,
    "c": 0.23167,
    "h": 269.6
  },
  "luminance": 0.0941
}

Semantic roles & 50–950 ramp

primary

#3040DB

secondary

#D9D28E

accent

#DC3BED

background

#F9F7FE

surface

#F1EDFD

border

#CBC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #3040DB

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

Preview Lab → · Contrast checker → · Palette generator →