#1B414B#1B414B

#1B414B is a dark, muted cyan. Relative luminance 0.045; OKLCH L 35.2% C 0.046 H 217.5°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#1B414B
RGB	rgb(27, 65, 75)
HSL	hsl(193, 47%, 20%)
HSV	hsv(193, 64%, 29%)
CMYK	cmyk(64%, 13.3%, 0%, 70.6%)
CIE-LAB	lab(25.32, -10.03, -10.14)
CIE-LCH	lch(25.32, 14.26, 225.32°)
OKLab	oklab(35.23% -0.0366 -0.0281)
OKLCH	oklch(35.23% 0.046 217.5)
XYZ	xyz(3.6118, 4.5213, 7.3376)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B414B #4B251B

analogous

#1B4B3D #1B414B #1B294B

triadic

#1B414B #4B1B41 #414B1B

tetradic

#1B414B #3D1B4B #4B251B #294B1B

square

#1B414B #3D1B4B #4B251B #294B1B

split-complementary

#1B414B #4B1B29 #4B3D1B

monochromatic

#081417 #0B1A1E #1B414B #2B6878 #3B8FA5

Accessibility & contrast

On white

11.03

#1B414B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1B414B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B414B

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B414B	#FFFFFF	#000000	##FFFFFF
##1B414B	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3F4C

Deuteranopia (green-blind)

#333A4B

Tritanopia (blue-blind)

#004544

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1b414b;
/* rgb */ color: rgb(27, 65, 75);
/* oklch */ color: oklch(35.2% 0.046 217.5);

Tailwind

colors: {
  custom: {
    50: '#5d757d',
    500: '#1b414b',
    950: '#000000',
  },
}

SCSS

$custom: #1b414b;
$custom-light: #5d757d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b414b",
  "rgb": {
    "r": 27,
    "g": 65,
    "b": 75
  },
  "hsl": {
    "h": 192.5,
    "s": 47.059,
    "l": 20
  },
  "oklch": {
    "l": 0.35228,
    "c": 0.0462,
    "h": 217.5
  },
  "luminance": 0.04522
}

Semantic roles & 50–950 ramp

primary

#1B414B

secondary

#814E41

accent

#6D51D7

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #1B414B

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

Preview Lab → · Contrast checker → · Palette generator →