#123E40#123E40

#123E40 is a dark, muted teal. Relative luminance 0.039; OKLCH L 33.5% C 0.047 H 199.4°. Best body text is #FFFFFF at 11.74:1 contrast (WCAG AA passes).

Color values

HEX	#123E40
RGB	rgb(18, 62, 64)
HSL	hsl(183, 56%, 16%)
HSV	hsv(183, 72%, 25%)
CMYK	cmyk(71.9%, 3.1%, 0%, 74.9%)
CIE-LAB	lab(23.48, -14.00, -5.67)
CIE-LCH	lch(23.48, 15.11, 202.03°)
OKLab	oklab(33.51% -0.0446 -0.0157)
OKLCH	oklch(33.51% 0.047 199.4)
XYZ	xyz(2.8971, 3.9437, 5.4580)
Luminance	0.0394 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123E40 #401412

analogous

#12402B #123E40 #122740

triadic

#123E40 #40123E #3E4012

tetradic

#123E40 #2B1240 #401412 #274012

square

#123E40 #2B1240 #401412 #274012

split-complementary

#123E40 #401227 #402B12

monochromatic

#071718 #071718 #123E40 #1F6C70 #2D9BA0

Accessibility & contrast

On white

11.74

#123E40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#123E40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123E40

11.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123E40	#FFFFFF	#000000	##FFFFFF
##123E40	1.00	11.74	1.79	11.74
#FFFFFF	11.74	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393B40

Deuteranopia (green-blind)

#323640

Tritanopia (blue-blind)

#00403E

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #123e40;
/* rgb */ color: rgb(18, 62, 64);
/* oklch */ color: oklch(33.5% 0.047 199.4);

Tailwind

colors: {
  custom: {
    50: '#577374',
    500: '#123e40',
    950: '#000000',
  },
}

SCSS

$custom: #123e40;
$custom-light: #577374;
$custom-dark: #000000;

JSON

{
  "hex": "#123e40",
  "rgb": {
    "r": 18,
    "g": 62,
    "b": 64
  },
  "hsl": {
    "h": 182.609,
    "s": 56.098,
    "l": 16.078
  },
  "oklch": {
    "l": 0.33508,
    "c": 0.04725,
    "h": 199.4
  },
  "luminance": 0.03944
}

Semantic roles & 50–950 ramp

primary

#123E40

secondary

#793835

accent

#4F48DF

background

#F5F7F7

surface

#E9EDED

border

#C5C8C8

text

#030808

muted

#787B7B

Preview Lab

Preview with #123E40

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

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