#12388A#12388A

#12388A is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.0% C 0.143 H 262.8°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#12388A
RGB	rgb(18, 56, 138)
HSL	hsl(221, 77%, 31%)
HSV	hsv(221, 87%, 54%)
CMYK	cmyk(87%, 59.4%, 0%, 45.9%)
CIE-LAB	lab(26.13, 20.21, -49.23)
CIE-LCH	lch(26.13, 53.22, 292.32°)
OKLab	oklab(37.04% -0.0181 -0.1423)
OKLCH	oklch(37.04% 0.143 262.8)
XYZ	xyz(6.2494, 4.7911, 24.6352)
Luminance	0.0479 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12388A #8A6412

analogous

#12748A #12388A #28128A

triadic

#12388A #8A1238 #388A12

tetradic

#12388A #8A1274 #8A6412 #128A28

square

#12388A #8A1274 #8A6412 #128A28

split-complementary

#12388A #8A2812 #748A12

monochromatic

#040C1E #0B2254 #12388A #194EC0 #326BE4

Accessibility & contrast

On white

10.72

#12388A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#12388A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12388A

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12388A	#FFFFFF	#000000	##FFFFFF
##12388A	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448D

Deuteranopia (green-blind)

#003988

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #12388a;
/* rgb */ color: rgb(18, 56, 138);
/* oklch */ color: oklch(37.0% 0.143 262.8);

Tailwind

colors: {
  custom: {
    50: '#686ead',
    500: '#12388a',
    950: '#000000',
  },
}

SCSS

$custom: #12388a;
$custom-light: #686ead;
$custom-dark: #000000;

JSON

{
  "hex": "#12388a",
  "rgb": {
    "r": 18,
    "g": 56,
    "b": 138
  },
  "hsl": {
    "h": 221,
    "s": 76.923,
    "l": 30.588
  },
  "oklch": {
    "l": 0.37044,
    "c": 0.14349,
    "h": 262.8
  },
  "luminance": 0.04792
}

Semantic roles & 50–950 ramp

primary

#12388A

secondary

#BF9439

accent

#B734F3

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #12388A

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

Preview Lab → · Contrast checker → · Palette generator →