#1B474B#1B474B

#1B474B is a dark, muted teal. Relative luminance 0.052; OKLCH L 36.9% C 0.048 H 203.4°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#1B474B
RGB	rgb(27, 71, 75)
HSL	hsl(185, 47%, 20%)
HSV	hsv(185, 64%, 29%)
CMYK	cmyk(64%, 5.3%, 0%, 70.6%)
CIE-LAB	lab(27.43, -13.64, -6.96)
CIE-LCH	lch(27.43, 15.31, 207.03°)
OKLab	oklab(36.92% -0.0444 -0.0192)
OKLCH	oklch(36.92% 0.048 203.4)
XYZ	xyz(3.9747, 5.2471, 7.4586)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B474B #4B1F1B

analogous

#1B4B37 #1B474B #1B2F4B

triadic

#1B474B #4B1B47 #474B1B

tetradic

#1B474B #371B4B #4B1F1B #2F4B1B

square

#1B474B #371B4B #4B1F1B #2F4B1B

split-complementary

#1B474B #4B1B2F #4B371B

monochromatic

#081517 #0B1C1E #1B474B #2B7278 #3B9CA5

Accessibility & contrast

On white

10.25

#1B474B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#1B474B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B474B

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B474B	#FFFFFF	#000000	##FFFFFF
##1B474B	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#41444B

Deuteranopia (green-blind)

#3A3E4B

Tritanopia (blue-blind)

#004A48

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1b474b;
/* rgb */ color: rgb(27, 71, 75);
/* oklch */ color: oklch(36.9% 0.048 203.4);

Tailwind

colors: {
  custom: {
    50: '#5d7a7d',
    500: '#1b474b',
    950: '#000000',
  },
}

SCSS

$custom: #1b474b;
$custom-light: #5d7a7d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b474b",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 75
  },
  "hsl": {
    "h": 185,
    "s": 47.059,
    "l": 20
  },
  "oklch": {
    "l": 0.36917,
    "c": 0.04839,
    "h": 203.4
  },
  "luminance": 0.05247
}

Semantic roles & 50–950 ramp

primary

#1B474B

secondary

#814641

accent

#5C51D7

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#050909

muted

#797B7B

Preview Lab

Preview with #1B474B

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

Preview Lab → · Contrast checker → · Palette generator →