#011031#011031

#011031 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.5% C 0.070 H 260.2°. Best body text is #FFFFFF at 18.75:1 contrast (WCAG AA passes).

Color values

HEX	#011031
RGB	rgb(1, 16, 49)
HSL	hsl(221, 96%, 10%)
HSV	hsv(221, 98%, 19%)
CMYK	cmyk(98%, 67.3%, 0%, 80.8%)
CIE-LAB	lab(5.41, 7.49, -23.37)
CIE-LCH	lch(5.41, 24.54, 287.78°)
OKLab	oklab(18.46% -0.012 -0.0693)
OKLCH	oklch(18.46% 0.07 260.2)
XYZ	xyz(0.7520, 0.5987, 2.9811)
Luminance	0.0060 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.18

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#011031 #312201

analogous

#012831 #011031 #0A0131

triadic

#011031 #310110 #103101

tetradic

#011031 #310128 #312201 #01310A

square

#011031 #310128 #312201 #01310A

split-complementary

#011031 #310A01 #283101

monochromatic

#010A1E #010A1E #011031 #02246D #0337A9

Accessibility & contrast

On white

18.75

#011031 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#011031 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #011031

18.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##011031	#FFFFFF	#000000	##FFFFFF
##011031	1.00	18.75	1.12	18.75
#FFFFFF	18.75	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001432

Deuteranopia (green-blind)

#001030

Tritanopia (blue-blind)

#00181E

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #011031;
/* rgb */ color: rgb(1, 16, 49);
/* oklch */ color: oklch(18.5% 0.070 260.2);

Tailwind

colors: {
  custom: {
    50: '#4a4e69',
    500: '#011031',
    950: '#000000',
  },
}

SCSS

$custom: #011031;
$custom-light: #4a4e69;
$custom-dark: #000000;

JSON

{
  "hex": "#011031",
  "rgb": {
    "r": 1,
    "g": 16,
    "b": 49
  },
  "hsl": {
    "h": 221.25,
    "s": 96,
    "l": 9.804
  },
  "oklch": {
    "l": 0.1846,
    "c": 0.07032,
    "h": 260.2
  },
  "luminance": 0.00599
}

Semantic roles & 50–950 ramp

primary

#011031

secondary

#775917

accent

#BC29FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010106

muted

#77777A

Preview Lab

Preview with #011031

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

Preview Lab → · Contrast checker → · Palette generator →