#010A2F#010A2F

#010A2F is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.7% C 0.076 H 263.5°. Best body text is #FFFFFF at 19.34:1 contrast (WCAG AA passes).

Color values

HEX	#010A2F
RGB	rgb(1, 10, 47)
HSL	hsl(228, 96%, 9%)
HSV	hsv(228, 98%, 18%)
CMYK	cmyk(97.9%, 78.7%, 0%, 81.6%)
CIE-LAB	lab(3.87, 9.28, -24.33)
CIE-LCH	lch(3.87, 26.04, 290.88°)
OKLab	oklab(16.73% -0.0086 -0.0757)
OKLCH	oklch(16.73% 0.076 263.5)
XYZ	xyz(0.6340, 0.4287, 2.7381)
Luminance	0.0043 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.03

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010A2F #2F2601

analogous

#01212F #010A2F #0F012F

triadic

#010A2F #2F010A #0A2F01

tetradic

#010A2F #2F0121 #2F2601 #012F0F

square

#010A2F #2F0121 #2F2601 #012F0F

split-complementary

#010A2F #2F0F01 #212F01

monochromatic

#01061E #01061E #010A2F #02176B #0424A7

Accessibility & contrast

On white

19.34

#010A2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#010A2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010A2F

19.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010A2F	#FFFFFF	#000000	##FFFFFF
##010A2F	1.00	19.34	1.09	19.34
#FFFFFF	19.34	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001030

Deuteranopia (green-blind)

#000B2E

Tritanopia (blue-blind)

#00141B

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #010a2f;
/* rgb */ color: rgb(1, 10, 47);
/* oklch */ color: oklch(16.7% 0.076 263.5);

Tailwind

colors: {
  custom: {
    50: '#494b68',
    500: '#010a2f',
    950: '#000000',
  },
}

SCSS

$custom: #010a2f;
$custom-light: #494b68;
$custom-dark: #000000;

JSON

{
  "hex": "#010a2f",
  "rgb": {
    "r": 1,
    "g": 10,
    "b": 47
  },
  "hsl": {
    "h": 228.261,
    "s": 95.833,
    "l": 9.412
  },
  "oklch": {
    "l": 0.16733,
    "c": 0.07618,
    "h": 263.5
  },
  "luminance": 0.00429
}

Semantic roles & 50–950 ramp

primary

#010A2F

secondary

#756217

accent

#D529FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010106

muted

#77777A

Preview Lab

Preview with #010A2F

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

Preview Lab → · Contrast checker → · Palette generator →