#1B555F#1B555F

#1B555F is a dark, moderate teal. Relative luminance 0.076; OKLCH L 41.7% C 0.061 H 211.1°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#1B555F
RGB	rgb(27, 85, 95)
HSL	hsl(189, 56%, 24%)
HSV	hsv(189, 72%, 37%)
CMYK	cmyk(71.6%, 10.5%, 0%, 62.7%)
CIE-LAB	lab(33.04, -14.92, -11.28)
CIE-LCH	lch(33.04, 18.71, 217.09°)
OKLab	oklab(41.69% -0.0519 -0.0314)
OKLCH	oklch(41.69% 0.061 211.1)
XYZ	xyz(5.7652, 7.5556, 11.9788)
Luminance	0.0756 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B555F #5F251B

analogous

#1B5F47 #1B555F #1B335F

triadic

#1B555F #5F1B55 #555F1B

tetradic

#1B555F #471B5F #5F251B #335F1B

square

#1B555F #471B5F #5F251B #335F1B

split-complementary

#1B555F #5F1B33 #5F471B

monochromatic

#071518 #0D2A2F #1B555F #29808F #36AABE

Accessibility & contrast

On white

8.36

#1B555F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#1B555F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B555F

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B555F	#FFFFFF	#000000	##FFFFFF
##1B555F	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D5260

Deuteranopia (green-blind)

#434B5F

Tritanopia (blue-blind)

#005958

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b555f;
/* rgb */ color: rgb(27, 85, 95);
/* oklch */ color: oklch(41.7% 0.061 211.1);

Tailwind

colors: {
  custom: {
    50: '#62858c',
    500: '#1b555f',
    950: '#000000',
  },
}

SCSS

$custom: #1b555f;
$custom-light: #62858c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b555f",
  "rgb": {
    "r": 27,
    "g": 85,
    "b": 95
  },
  "hsl": {
    "h": 188.824,
    "s": 55.738,
    "l": 23.922
  },
  "oklch": {
    "l": 0.41693,
    "c": 0.06067,
    "h": 211.1
  },
  "luminance": 0.07556
}

Semantic roles & 50–950 ramp

primary

#1B555F

secondary

#954D41

accent

#5F49DF

background

#F6F8F8

surface

#EBEFF0

border

#C6CACB

text

#050B0C

muted

#7A7C7D

Preview Lab

Preview with #1B555F

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

Preview Lab → · Contrast checker → · Palette generator →