#12284B#12284B

#12284B is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.0% C 0.071 H 259.3°. Best body text is #FFFFFF at 14.68:1 contrast (WCAG AA passes).

Color values

HEX	#12284B
RGB	rgb(18, 40, 75)
HSL	hsl(217, 61%, 18%)
HSV	hsv(217, 76%, 29%)
CMYK	cmyk(76%, 46.7%, 0%, 70.6%)
CIE-LAB	lab(16.27, 5.04, -24.29)
CIE-LCH	lch(16.27, 24.80, 281.72°)
OKLab	oklab(27.97% -0.0131 -0.0693)
OKLCH	oklch(27.97% 0.071 259.3)
XYZ	xyz(2.2778, 2.1539, 6.9510)
Luminance	0.0215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12284B #4B3512

analogous

#12444B #12284B #18124B

triadic

#12284B #4B1228 #284B12

tetradic

#12284B #4B1244 #4B3512 #124B18

square

#12284B #4B1244 #4B3512 #124B18

split-complementary

#12284B #4B1812 #444B12

monochromatic

#060D19 #060E1A #12284B #1E427C #2A5DAE

Accessibility & contrast

On white

14.68

#12284B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#12284B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12284B

14.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12284B	#FFFFFF	#000000	##FFFFFF
##12284B	1.00	14.68	1.43	14.68
#FFFFFF	14.68	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#172B4C

Deuteranopia (green-blind)

#0E264A

Tritanopia (blue-blind)

#003035

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #12284b;
/* rgb */ color: rgb(18, 40, 75);
/* oklch */ color: oklch(28.0% 0.071 259.3);

Tailwind

colors: {
  custom: {
    50: '#58617d',
    500: '#12284b',
    950: '#000000',
  },
}

SCSS

$custom: #12284b;
$custom-light: #58617d;
$custom-dark: #000000;

JSON

{
  "hex": "#12284b",
  "rgb": {
    "r": 18,
    "g": 40,
    "b": 75
  },
  "hsl": {
    "h": 216.842,
    "s": 61.29,
    "l": 18.235
  },
  "oklch": {
    "l": 0.27974,
    "c": 0.07055,
    "h": 259.3
  },
  "luminance": 0.02154
}

Semantic roles & 50–950 ramp

primary

#12284B

secondary

#846535

accent

#A643E4

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040509

muted

#79797B

Preview Lab

Preview with #12284B

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

Preview Lab → · Contrast checker → · Palette generator →