#12306C#12306C

#12306C is a dark, moderate blue. Relative luminance 0.033; OKLCH L 32.6% C 0.111 H 262.2°. Best body text is #FFFFFF at 12.61:1 contrast (WCAG AA passes).

Color values

HEX	#12306C
RGB	rgb(18, 48, 108)
HSL	hsl(220, 71%, 25%)
HSV	hsv(220, 83%, 42%)
CMYK	cmyk(83.3%, 55.6%, 0%, 57.6%)
CIE-LAB	lab(21.30, 13.32, -38.09)
CIE-LCH	lch(21.30, 40.35, 289.27°)
OKLab	oklab(32.61% -0.015 -0.1098)
OKLCH	oklch(32.61% 0.111 262.2)
XYZ	xyz(4.0122, 3.3247, 14.6147)
Luminance	0.0333 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12306C #6C4E12

analogous

#125D6C #12306C #21126C

triadic

#12306C #6C1230 #306C12

tetradic

#12306C #6C125D #6C4E12 #126C21

square

#12306C #6C125D #6C4E12 #126C21

split-complementary

#12306C #6C2112 #5D6C12

monochromatic

#040C1A #091938 #12306C #1B47A0 #235FD5

Accessibility & contrast

On white

12.61

#12306C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#12306C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12306C

12.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12306C	#FFFFFF	#000000	##FFFFFF
##12306C	1.00	12.61	1.67	12.61
#FFFFFF	12.61	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#04376E

Deuteranopia (green-blind)

#002F6B

Tritanopia (blue-blind)

#003F49

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #12306c;
/* rgb */ color: rgb(18, 48, 108);
/* oklch */ color: oklch(32.6% 0.111 262.2);

Tailwind

colors: {
  custom: {
    50: '#606797',
    500: '#12306c',
    950: '#000000',
  },
}

SCSS

$custom: #12306c;
$custom-light: #606797;
$custom-dark: #000000;

JSON

{
  "hex": "#12306c",
  "rgb": {
    "r": 18,
    "g": 48,
    "b": 108
  },
  "hsl": {
    "h": 220,
    "s": 71.429,
    "l": 24.706
  },
  "oklch": {
    "l": 0.32614,
    "c": 0.11081,
    "h": 262.2
  },
  "luminance": 0.03325
}

Semantic roles & 50–950 ramp

primary

#12306C

secondary

#A37F36

accent

#B23AEE

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#05060D

muted

#7A7A7E

Preview Lab

Preview with #12306C

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

Preview Lab → · Contrast checker → · Palette generator →