#1B474F#1B474F

#1B474F is a dark, muted teal. Relative luminance 0.053; OKLCH L 37.1% C 0.050 H 211.3°. Best body text is #FFFFFF at 10.19:1 contrast (WCAG AA passes).

Color values

HEX	#1B474F
RGB	rgb(27, 71, 79)
HSL	hsl(189, 49%, 21%)
HSV	hsv(189, 66%, 31%)
CMYK	cmyk(65.8%, 10.1%, 0%, 69%)
CIE-LAB	lab(27.58, -12.28, -9.32)
CIE-LCH	lch(27.58, 15.42, 217.22°)
OKLab	oklab(37.09% -0.0425 -0.0258)
OKLCH	oklch(37.09% 0.05 211.3)
XYZ	xyz(4.1159, 5.3036, 8.2024)
Luminance	0.0530 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B474F #4F231B

analogous

#1B4F3D #1B474F #1B2D4F

triadic

#1B474F #4F1B47 #474F1B

tetradic

#1B474F #3D1B4F #4F231B #2D4F1B

square

#1B474F #3D1B4F #4F231B #2D4F1B

split-complementary

#1B474F #4F1B2D #4F3D1B

monochromatic

#081417 #0B1E21 #1B474F #2B707D #3A99AA

Accessibility & contrast

On white

10.19

#1B474F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#1B474F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B474F

10.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B474F	#FFFFFF	#000000	##FFFFFF
##1B474F	1.00	10.19	2.06	10.19
#FFFFFF	10.19	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#40444F

Deuteranopia (green-blind)

#393F4F

Tritanopia (blue-blind)

#004A49

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1b474f;
/* rgb */ color: rgb(27, 71, 79);
/* oklch */ color: oklch(37.1% 0.050 211.3);

Tailwind

colors: {
  custom: {
    50: '#5e7a80',
    500: '#1b474f',
    950: '#000000',
  },
}

SCSS

$custom: #1b474f;
$custom-light: #5e7a80;
$custom-dark: #000000;

JSON

{
  "hex": "#1b474f",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 79
  },
  "hsl": {
    "h": 189.231,
    "s": 49.057,
    "l": 20.784
  },
  "oklch": {
    "l": 0.37093,
    "c": 0.04971,
    "h": 211.3
  },
  "luminance": 0.05304
}

Semantic roles & 50–950 ramp

primary

#1B474F

secondary

#854B41

accent

#644FD9

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#05090A

muted

#797B7C

Preview Lab

Preview with #1B474F

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

Preview Lab → · Contrast checker → · Palette generator →