#12478C#12478C

#12478C is a dark, vivid cyan. Relative luminance 0.065; OKLCH L 40.6% C 0.127 H 257.2°. Best body text is #FFFFFF at 9.11:1 contrast (WCAG AA passes).

Color values

HEX	#12478C
RGB	rgb(18, 71, 140)
HSL	hsl(214, 77%, 31%)
HSV	hsv(214, 87%, 55%)
CMYK	cmyk(87.1%, 49.3%, 0%, 45.1%)
CIE-LAB	lab(30.71, 10.58, -43.05)
CIE-LCH	lch(30.71, 44.33, 283.81°)
OKLab	oklab(40.58% -0.0282 -0.1238)
OKLCH	oklch(40.58% 0.127 257.2)
XYZ	xyz(7.2346, 6.5276, 25.6845)
Luminance	0.0653 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12478C #8C5712

analogous

#12848C #12478C #1A128C

triadic

#12478C #8C1247 #478C12

tetradic

#12478C #8C1284 #8C5712 #128C1A

square

#12478C #8C1284 #8C5712 #128C1A

split-complementary

#12478C #8C1A12 #848C12

monochromatic

#041020 #0B2B56 #12478C #1963C2 #3481E5

Accessibility & contrast

On white

9.11

#12478C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#12478C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12478C

9.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12478C	#FFFFFF	#000000	##FFFFFF
##12478C	1.00	9.11	2.31	9.11
#FFFFFF	9.11	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4E8F

Deuteranopia (green-blind)

#00438B

Tritanopia (blue-blind)

#005862

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #12478c;
/* rgb */ color: rgb(18, 71, 140);
/* oklch */ color: oklch(40.6% 0.127 257.2);

Tailwind

colors: {
  custom: {
    50: '#6879ae',
    500: '#12478c',
    950: '#000000',
  },
}

SCSS

$custom: #12478c;
$custom-light: #6879ae;
$custom-dark: #000000;

JSON

{
  "hex": "#12478c",
  "rgb": {
    "r": 18,
    "g": 71,
    "b": 140
  },
  "hsl": {
    "h": 213.934,
    "s": 77.215,
    "l": 30.98
  },
  "oklch": {
    "l": 0.40578,
    "c": 0.12703,
    "h": 257.2
  },
  "luminance": 0.06529
}

Semantic roles & 50–950 ramp

primary

#12478C

secondary

#C08639

accent

#A034F4

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #12478C

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

Preview Lab → · Contrast checker → · Palette generator →