#12103E#12103E

#12103E is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 21.1% C 0.085 H 278.2°. Best body text is #FFFFFF at 17.96:1 contrast (WCAG AA passes).

Color values

HEX	#12103E
RGB	rgb(18, 16, 62)
HSL	hsl(243, 59%, 15%)
HSV	hsv(243, 74%, 24%)
CMYK	cmyk(71%, 74.2%, 0%, 75.7%)
CIE-LAB	lab(7.65, 17.76, -29.14)
CIE-LCH	lch(7.65, 34.12, 301.36°)
OKLab	oklab(21.12% 0.0121 -0.084)
OKLCH	oklch(21.12% 0.085 278.2)
XYZ	xyz(1.3040, 0.8469, 4.6512)
Luminance	0.0085 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 3.38

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12103E #3C3E10

analogous

#10253E #12103E #29103E

triadic

#12103E #3E1210 #103E12

tetradic

#12103E #3E1025 #3C3E10 #103E29

square

#12103E #3E1025 #3C3E10 #103E29

split-complementary

#12103E #3E2910 #253E10

monochromatic

#070618 #070618 #12103E #201D6F #2E299F

Accessibility & contrast

On white

17.96

#12103E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#12103E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12103E

17.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12103E	#FFFFFF	#000000	##FFFFFF
##12103E	1.00	17.96	1.17	17.96
#FFFFFF	17.96	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00193F

Deuteranopia (green-blind)

#00153D

Tritanopia (blue-blind)

#001C25

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #12103e;
/* rgb */ color: rgb(18, 16, 62);
/* oklch */ color: oklch(21.1% 0.085 278.2);

Tailwind

colors: {
  custom: {
    50: '#564e74',
    500: '#12103e',
    950: '#000000',
  },
}

SCSS

$custom: #12103e;
$custom-light: #564e74;
$custom-dark: #000000;

JSON

{
  "hex": "#12103e",
  "rgb": {
    "r": 18,
    "g": 16,
    "b": 62
  },
  "hsl": {
    "h": 242.609,
    "s": 58.974,
    "l": 15.294
  },
  "oklch": {
    "l": 0.21123,
    "c": 0.08485,
    "h": 278.2
  },
  "luminance": 0.00847
}

Semantic roles & 50–950 ramp

primary

#12103E

secondary

#757832

accent

#E246DB

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #12103E

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

Preview Lab → · Contrast checker → · Palette generator →