#010A2C#010A2C

#010A2C is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.4% C 0.071 H 263.1°. Best body text is #FFFFFF at 19.43:1 contrast (WCAG AA passes).

Color values

HEX	#010A2C
RGB	rgb(1, 10, 44)
HSL	hsl(227, 96%, 9%)
HSV	hsv(227, 98%, 17%)
CMYK	cmyk(97.7%, 77.3%, 0%, 82.7%)
CIE-LAB	lab(3.66, 7.79, -22.41)
CIE-LCH	lch(3.66, 23.73, 289.18°)
OKLab	oklab(16.37% -0.0086 -0.0708)
OKLCH	oklch(16.37% 0.071 263.1)
XYZ	xyz(0.5755, 0.4053, 2.4303)
Luminance	0.0040 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.95

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010A2C #2C2301

analogous

#01202C #010A2C #0E012C

triadic

#010A2C #2C010A #0A2C01

tetradic

#010A2C #2C0120 #2C2301 #012C0E

square

#010A2C #2C0120 #2C2301 #012C0E

split-complementary

#010A2C #2C0E01 #202C01

monochromatic

#01071E #01071E #010A2C #021868 #0425A4

Accessibility & contrast

On white

19.43

#010A2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#010A2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010A2C

19.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010A2C	#FFFFFF	#000000	##FFFFFF
##010A2C	1.00	19.43	1.08	19.43
#FFFFFF	19.43	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F2D

Deuteranopia (green-blind)

#000B2B

Tritanopia (blue-blind)

#001319

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #010a2c;
/* rgb */ color: rgb(1, 10, 44);
/* oklch */ color: oklch(16.4% 0.071 263.1);

Tailwind

colors: {
  custom: {
    50: '#484b65',
    500: '#010a2c',
    950: '#000000',
  },
}

SCSS

$custom: #010a2c;
$custom-light: #484b65;
$custom-dark: #000000;

JSON

{
  "hex": "#010a2c",
  "rgb": {
    "r": 1,
    "g": 10,
    "b": 44
  },
  "hsl": {
    "h": 227.442,
    "s": 95.556,
    "l": 8.824
  },
  "oklch": {
    "l": 0.16368,
    "c": 0.0713,
    "h": 263.1
  },
  "luminance": 0.00405
}

Semantic roles & 50–950 ramp

primary

#010A2C

secondary

#725F17

accent

#D229FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010105

muted

#77777A

Preview Lab

Preview with #010A2C

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

Preview Lab → · Contrast checker → · Palette generator →