#1B555D#1B555D

#1B555D is a dark, muted teal. Relative luminance 0.075; OKLCH L 41.6% C 0.060 H 208.0°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#1B555D
RGB	rgb(27, 85, 93)
HSL	hsl(187, 55%, 24%)
HSV	hsv(187, 71%, 36%)
CMYK	cmyk(71%, 8.6%, 0%, 63.5%)
CIE-LAB	lab(32.96, -15.61, -10.14)
CIE-LCH	lch(32.96, 18.62, 213.00°)
OKLab	oklab(41.6% -0.0529 -0.0281)
OKLCH	oklch(41.6% 0.06 208)
XYZ	xyz(5.6754, 7.5197, 11.5061)
Luminance	0.0752 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B555D #5D231B

analogous

#1B5D44 #1B555D #1B345D

triadic

#1B555D #5D1B55 #555D1B

tetradic

#1B555D #441B5D #5D231B #345D1B

square

#1B555D #441B5D #5D231B #345D1B

split-complementary

#1B555D #5D1B34 #5D441B

monochromatic

#071618 #0D2A2E #1B555D #29808C #37ACBC

Accessibility & contrast

On white

8.39

#1B555D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#1B555D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B555D

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B555D	#FFFFFF	#000000	##FFFFFF
##1B555D	1.00	8.39	2.50	8.39
#FFFFFF	8.39	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D525E

Deuteranopia (green-blind)

#444A5D

Tritanopia (blue-blind)

#005957

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b555d;
/* rgb */ color: rgb(27, 85, 93);
/* oklch */ color: oklch(41.6% 0.060 208.0);

Tailwind

colors: {
  custom: {
    50: '#61858a',
    500: '#1b555d',
    950: '#000000',
  },
}

SCSS

$custom: #1b555d;
$custom-light: #61858a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b555d",
  "rgb": {
    "r": 27,
    "g": 85,
    "b": 93
  },
  "hsl": {
    "h": 187.273,
    "s": 55,
    "l": 23.529
  },
  "oklch": {
    "l": 0.41604,
    "c": 0.0599,
    "h": 208
  },
  "luminance": 0.0752
}

Semantic roles & 50–950 ramp

primary

#1B555D

secondary

#934B41

accent

#5C49DE

background

#F6F8F8

surface

#EBEFF0

border

#C6CACB

text

#050B0B

muted

#7A7C7C

Preview Lab

Preview with #1B555D

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

Preview Lab → · Contrast checker → · Palette generator →