#1B545B#1B545B

#1B545B is a dark, muted teal. Relative luminance 0.073; OKLCH L 41.2% C 0.059 H 206.6°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#1B545B
RGB	rgb(27, 84, 91)
HSL	hsl(187, 54%, 23%)
HSV	hsv(187, 70%, 36%)
CMYK	cmyk(70.3%, 7.7%, 0%, 64.3%)
CIE-LAB	lab(32.54, -15.73, -9.51)
CIE-LCH	lch(32.54, 18.38, 211.16°)
OKLab	oklab(41.24% -0.0526 -0.0264)
OKLCH	oklch(41.24% 0.059 206.6)
XYZ	xyz(5.5098, 7.3284, 11.0196)
Luminance	0.0733 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B545B #5B221B

analogous

#1B5B42 #1B545B #1B345B

triadic

#1B545B #5B1B54 #545B1B

tetradic

#1B545B #421B5B #5B221B #345B1B

square

#1B545B #421B5B #5B221B #345B1B

split-complementary

#1B545B #5B1B34 #5B421B

monochromatic

#071618 #0D282C #1B545B #29808A #37ABB9

Accessibility & contrast

On white

8.52

#1B545B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1B545B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B545B

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B545B	#FFFFFF	#000000	##FFFFFF
##1B545B	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D515B

Deuteranopia (green-blind)

#434A5B

Tritanopia (blue-blind)

#005856

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b545b;
/* rgb */ color: rgb(27, 84, 91);
/* oklch */ color: oklch(41.2% 0.059 206.6);

Tailwind

colors: {
  custom: {
    50: '#618489',
    500: '#1b545b',
    950: '#000000',
  },
}

SCSS

$custom: #1b545b;
$custom-light: #618489;
$custom-dark: #000000;

JSON

{
  "hex": "#1b545b",
  "rgb": {
    "r": 27,
    "g": 84,
    "b": 91
  },
  "hsl": {
    "h": 186.563,
    "s": 54.237,
    "l": 23.137
  },
  "oklch": {
    "l": 0.41241,
    "c": 0.05888,
    "h": 206.6
  },
  "luminance": 0.07329
}

Semantic roles & 50–950 ramp

primary

#1B545B

secondary

#914A41

accent

#5A4ADE

background

#F6F8F8

surface

#EBEFF0

border

#C6CACB

text

#050B0B

muted

#7A7C7C

Preview Lab

Preview with #1B545B

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

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