#12387A#12387A

#12387A is a dark, vivid blue. Relative luminance 0.044; OKLCH L 35.7% C 0.121 H 260.7°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).

Color values

HEX	#12387A
RGB	rgb(18, 56, 122)
HSL	hsl(218, 74%, 27%)
HSV	hsv(218, 85%, 48%)
CMYK	cmyk(85.2%, 54.1%, 0%, 52.2%)
CIE-LAB	lab(24.83, 13.51, -41.32)
CIE-LCH	lch(24.83, 43.47, 288.11°)
OKLab	oklab(35.65% -0.0196 -0.1191)
OKLCH	oklch(35.65% 0.121 260.7)
XYZ	xyz(5.1752, 4.3615, 18.9777)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12387A #7A5412

analogous

#126C7A #12387A #20127A

triadic

#12387A #7A1238 #387A12

tetradic

#12387A #7A126C #7A5412 #127A20

square

#12387A #7A126C #7A5412 #127A20

split-complementary

#12387A #7A2012 #6C7A12

monochromatic

#040C1B #0A2045 #12387A #1A50AF #276ADF

Accessibility & contrast

On white

11.22

#12387A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#12387A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12387A

11.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12387A	#FFFFFF	#000000	##FFFFFF
##12387A	1.00	11.22	1.87	11.22
#FFFFFF	11.22	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09407C

Deuteranopia (green-blind)

#003679

Tritanopia (blue-blind)

#004853

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #12387a;
/* rgb */ color: rgb(18, 56, 122);
/* oklch */ color: oklch(35.7% 0.121 260.7);

Tailwind

colors: {
  custom: {
    50: '#646ea1',
    500: '#12387a',
    950: '#000000',
  },
}

SCSS

$custom: #12387a;
$custom-light: #646ea1;
$custom-dark: #000000;

JSON

{
  "hex": "#12387a",
  "rgb": {
    "r": 18,
    "g": 56,
    "b": 122
  },
  "hsl": {
    "h": 218.077,
    "s": 74.286,
    "l": 27.451
  },
  "oklch": {
    "l": 0.35651,
    "c": 0.1207,
    "h": 260.7
  },
  "luminance": 0.04362
}

Semantic roles & 50–950 ramp

primary

#12387A

secondary

#B08438

accent

#AD37F1

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #12387A

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

Preview Lab → · Contrast checker → · Palette generator →