#1B515B#1B515B

#1B515B is a dark, muted teal. Relative luminance 0.069; OKLCH L 40.4% C 0.058 H 212.1°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#1B515B
RGB	rgb(27, 81, 91)
HSL	hsl(189, 54%, 23%)
HSV	hsv(189, 70%, 36%)
CMYK	cmyk(70.3%, 11%, 0%, 64.3%)
CIE-LAB	lab(31.52, -14.00, -11.07)
CIE-LCH	lch(31.52, 17.85, 218.32°)
OKLab	oklab(40.41% -0.0491 -0.0307)
OKLCH	oklch(40.41% 0.058 212.1)
XYZ	xyz(5.2820, 6.8726, 10.9437)
Luminance	0.0687 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B515B #5B251B

analogous

#1B5B45 #1B515B #1B315B

triadic

#1B515B #5B1B51 #515B1B

tetradic

#1B515B #451B5B #5B251B #315B1B

square

#1B515B #451B5B #5B251B #315B1B

split-complementary

#1B515B #5B1B31 #5B451B

monochromatic

#071518 #0D272C #1B515B #297B8A #37A5B9

Accessibility & contrast

On white

8.84

#1B515B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#1B515B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B515B

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B515B	#FFFFFF	#000000	##FFFFFF
##1B515B	1.00	8.84	2.37	8.84
#FFFFFF	8.84	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#494E5C

Deuteranopia (green-blind)

#40475B

Tritanopia (blue-blind)

#005554

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b515b;
/* rgb */ color: rgb(27, 81, 91);
/* oklch */ color: oklch(40.4% 0.058 212.1);

Tailwind

colors: {
  custom: {
    50: '#618289',
    500: '#1b515b',
    950: '#000000',
  },
}

SCSS

$custom: #1b515b;
$custom-light: #618289;
$custom-dark: #000000;

JSON

{
  "hex": "#1b515b",
  "rgb": {
    "r": 27,
    "g": 81,
    "b": 91
  },
  "hsl": {
    "h": 189.375,
    "s": 54.237,
    "l": 23.137
  },
  "oklch": {
    "l": 0.40413,
    "c": 0.05791,
    "h": 212.1
  },
  "luminance": 0.06873
}

Semantic roles & 50–950 ramp

primary

#1B515B

secondary

#914E41

accent

#614ADE

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#050A0B

muted

#7A7C7C

Preview Lab

Preview with #1B515B

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

Preview Lab → · Contrast checker → · Palette generator →