#12423B#12423B

#12423B is a dark, muted teal. Relative luminance 0.043; OKLCH L 34.5% C 0.052 H 181.6°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX	#12423B
RGB	rgb(18, 66, 59)
HSL	hsl(171, 57%, 16%)
HSV	hsv(171, 73%, 26%)
CMYK	cmyk(72.7%, 0%, 10.6%, 74.1%)
CIE-LAB	lab(24.77, -17.94, -0.45)
CIE-LCH	lch(24.77, 17.94, 181.43°)
OKLab	oklab(34.49% -0.0523 -0.0015)
OKLCH	oklch(34.49% 0.052 181.6)
XYZ	xyz(2.9867, 4.3405, 4.8172)
Luminance	0.0434 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12423B #421219

analogous

#124223 #12423B #123142

triadic

#12423B #3B1242 #423B12

tetradic

#12423B #231242 #421219 #314212

square

#12423B #231242 #421219 #314212

split-complementary

#12423B #421231 #422312

monochromatic

#071815 #071815 #12423B #1F7266 #2CA291

Accessibility & contrast

On white

11.24

#12423B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#12423B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12423B

11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12423B	#FFFFFF	#000000	##FFFFFF
##12423B	1.00	11.24	1.87	11.24
#FFFFFF	11.24	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F3E3B

Deuteranopia (green-blind)

#38393C

Tritanopia (blue-blind)

#004340

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #12423b;
/* rgb */ color: rgb(18, 66, 59);
/* oklch */ color: oklch(34.5% 0.052 181.6);

Tailwind

colors: {
  custom: {
    50: '#577670',
    500: '#12423b',
    950: '#000000',
  },
}

SCSS

$custom: #12423b;
$custom-light: #577670;
$custom-dark: #000000;

JSON

{
  "hex": "#12423b",
  "rgb": {
    "r": 18,
    "g": 66,
    "b": 59
  },
  "hsl": {
    "h": 171.25,
    "s": 57.143,
    "l": 16.471
  },
  "oklch": {
    "l": 0.3449,
    "c": 0.05232,
    "h": 181.6
  },
  "luminance": 0.04341
}

Semantic roles & 50–950 ramp

primary

#12423B

secondary

#7B353F

accent

#475EE0

background

#F5F7F6

surface

#E9EDEC

border

#C5C8C7

text

#030807

muted

#787B7A

Preview Lab

Preview with #12423B

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

Preview Lab → · Contrast checker → · Palette generator →