#030440#030440

#030440 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 17.9% C 0.108 H 267.5°. Best body text is #FFFFFF at 19.17:1 contrast (WCAG AA passes).

Color values

HEX	#030440
RGB	rgb(3, 4, 64)
HSL	hsl(239, 91%, 13%)
HSV	hsv(239, 95%, 25%)
CMYK	cmyk(95.3%, 93.8%, 0%, 74.9%)
CIE-LAB	lab(4.30, 22.28, -36.08)
CIE-LCH	lch(4.30, 42.40, 301.69°)
OKLab	oklab(17.95% -0.0048 -0.1084)
OKLCH	oklch(17.95% 0.108 267.5)
XYZ	xyz(1.0061, 0.4762, 4.8884)
Luminance	0.0048 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Night Blue

#040348

ΔE00 2.22

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#030440 #403F03

analogous

#032240 #030440 #200340

triadic

#030440 #400304 #044003

tetradic

#030440 #400322 #403F03 #034020

square

#030440 #400322 #403F03 #034020

split-complementary

#030440 #402003 #224003

monochromatic

#01021D #01021D #030440 #06087A #080BB5

Accessibility & contrast

On white

19.17

#030440 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#030440 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #030440

19.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##030440	#FFFFFF	#000000	##FFFFFF
##030440	1.00	19.17	1.10	19.17
#FFFFFF	19.17	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001242

Deuteranopia (green-blind)

#000B3F

Tritanopia (blue-blind)

#001723

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #030440;
/* rgb */ color: rgb(3, 4, 64);
/* oklch */ color: oklch(17.9% 0.108 267.5);

Tailwind

colors: {
  custom: {
    50: '#514776',
    500: '#030440',
    950: '#000000',
  },
}

SCSS

$custom: #030440;
$custom-light: #514776;
$custom-dark: #000000;

JSON

{
  "hex": "#030440",
  "rgb": {
    "r": 3,
    "g": 4,
    "b": 64
  },
  "hsl": {
    "h": 239.016,
    "s": 91.045,
    "l": 13.137
  },
  "oklch": {
    "l": 0.17945,
    "c": 0.10848,
    "h": 267.5
  },
  "luminance": 0.00476
}

Semantic roles & 50–950 ramp

primary

#030440

secondary

#82801D

accent

#FB29FF

background

#F4F4F7

surface

#E7E6ED

border

#C3C2C8

text

#030008

muted

#78777B

Preview Lab

Preview with #030440

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

Preview Lab → · Contrast checker → · Palette generator →