#12102F#12102F

#12102F is a very dark, muted blue. Relative luminance 0.007; OKLCH L 19.6% C 0.060 H 282.3°. Best body text is #FFFFFF at 18.41:1 contrast (WCAG AA passes).

Color values

HEX	#12102F
RGB	rgb(18, 16, 47)
HSL	hsl(244, 49%, 12%)
HSV	hsv(244, 66%, 18%)
CMYK	cmyk(61.7%, 66%, 0%, 81.6%)
CIE-LAB	lab(6.36, 11.23, -20.30)
CIE-LCH	lch(6.36, 23.20, 298.94°)
OKLab	oklab(19.64% 0.0127 -0.0586)
OKLCH	oklch(19.64% 0.06 282.3)
XYZ	xyz(0.9477, 0.7044, 2.7748)
Luminance	0.0070 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.84

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12102F #2D2F10

analogous

#101E2F #12102F #22102F

triadic

#12102F #2F1210 #102F12

tetradic

#12102F #2F101E #2D2F10 #102F22

square

#12102F #2F101E #2D2F10 #102F22

split-complementary

#12102F #2F2210 #1E2F10

monochromatic

#090817 #090817 #12102F #23205D #352F8A

Accessibility & contrast

On white

18.41

#12102F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#12102F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12102F

18.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12102F	#FFFFFF	#000000	##FFFFFF
##12102F	1.00	18.41	1.14	18.41
#FFFFFF	18.41	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#021530

Deuteranopia (green-blind)

#01132E

Tritanopia (blue-blind)

#07171D

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #12102f;
/* rgb */ color: rgb(18, 16, 47);
/* oklch */ color: oklch(19.6% 0.060 282.3);

Tailwind

colors: {
  custom: {
    50: '#524e68',
    500: '#12102f',
    950: '#000000',
  },
}

SCSS

$custom: #12102f;
$custom-light: #524e68;
$custom-dark: #000000;

JSON

{
  "hex": "#12102f",
  "rgb": {
    "r": 18,
    "g": 16,
    "b": 47
  },
  "hsl": {
    "h": 243.871,
    "s": 49.206,
    "l": 12.353
  },
  "oklch": {
    "l": 0.19644,
    "c": 0.05998,
    "h": 282.3
  },
  "luminance": 0.00704
}

Semantic roles & 50–950 ramp

primary

#12102F

secondary

#656833

accent

#D94FD0

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020106

muted

#78777A

Preview Lab

Preview with #12102F

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

Preview Lab → · Contrast checker → · Palette generator →