#1B474A#1B474A

#1B474A is a dark, muted teal. Relative luminance 0.052; OKLCH L 36.9% C 0.048 H 201.4°. Best body text is #FFFFFF at 10.26:1 contrast (WCAG AA passes).

Color values

HEX	#1B474A
RGB	rgb(27, 71, 74)
HSL	hsl(184, 47%, 20%)
HSV	hsv(184, 64%, 29%)
CMYK	cmyk(63.5%, 4.1%, 0%, 71%)
CIE-LAB	lab(27.39, -13.97, -6.36)
CIE-LCH	lch(27.39, 15.35, 204.49°)
OKLab	oklab(36.87% -0.0449 -0.0176)
OKLCH	oklch(36.87% 0.048 201.4)
XYZ	xyz(3.9407, 5.2335, 7.2797)
Luminance	0.0523 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B474A #4A1E1B

analogous

#1B4A36 #1B474A #1B2F4A

triadic

#1B474A #4A1B47 #474A1B

tetradic

#1B474A #361B4A #4A1E1B #2F4A1B

square

#1B474A #361B4A #4A1E1B #2F4A1B

split-complementary

#1B474A #4A1B2F #4A361B

monochromatic

#081616 #0B1C1D #1B474A #2B7277 #3C9DA4

Accessibility & contrast

On white

10.26

#1B474A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#1B474A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B474A

10.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B474A	#FFFFFF	#000000	##FFFFFF
##1B474A	1.00	10.26	2.05	10.26
#FFFFFF	10.26	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#42444A

Deuteranopia (green-blind)

#3A3E4A

Tritanopia (blue-blind)

#004A48

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1b474a;
/* rgb */ color: rgb(27, 71, 74);
/* oklch */ color: oklch(36.9% 0.048 201.4);

Tailwind

colors: {
  custom: {
    50: '#5d7a7c',
    500: '#1b474a',
    950: '#000000',
  },
}

SCSS

$custom: #1b474a;
$custom-light: #5d7a7c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b474a",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 74
  },
  "hsl": {
    "h": 183.83,
    "s": 46.535,
    "l": 19.804
  },
  "oklch": {
    "l": 0.36874,
    "c": 0.04823,
    "h": 201.4
  },
  "luminance": 0.05234
}

Semantic roles & 50–950 ramp

primary

#1B474A

secondary

#804541

accent

#5A52D6

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#040909

muted

#797B7B

Preview Lab

Preview with #1B474A

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

Preview Lab → · Contrast checker → · Palette generator →