#1B4352#1B4352

#1B4352 is a dark, muted cyan. Relative luminance 0.049; OKLCH L 36.1% C 0.052 H 225.6°. Best body text is #FFFFFF at 10.65:1 contrast (WCAG AA passes).

Color values

HEX	#1B4352
RGB	rgb(27, 67, 82)
HSL	hsl(196, 50%, 21%)
HSV	hsv(196, 67%, 32%)
CMYK	cmyk(67.1%, 18.3%, 0%, 67.8%)
CIE-LAB	lab(26.32, -8.77, -13.20)
CIE-LCH	lch(26.32, 15.85, 236.41°)
OKLab	oklab(36.12% -0.036 -0.0368)
OKLCH	oklch(36.12% 0.052 225.6)
XYZ	xyz(3.9815, 4.8561, 8.7085)
Luminance	0.0486 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4352 #522A1B

analogous

#1B5246 #1B4352 #1B2852

triadic

#1B4352 #521B43 #43521B

tetradic

#1B4352 #461B52 #522A1B #28521B

square

#1B4352 #461B52 #522A1B #28521B

split-complementary

#1B4352 #521B28 #52461B

monochromatic

#081317 #0C1D24 #1B4352 #2A6980 #398EAE

Accessibility & contrast

On white

10.65

#1B4352 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#1B4352 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4352

10.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4352	#FFFFFF	#000000	##FFFFFF
##1B4352	1.00	10.65	1.97	10.65
#FFFFFF	10.65	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B4253

Deuteranopia (green-blind)

#333C52

Tritanopia (blue-blind)

#004748

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1b4352;
/* rgb */ color: rgb(27, 67, 82);
/* oklch */ color: oklch(36.1% 0.052 225.6);

Tailwind

colors: {
  custom: {
    50: '#5e7782',
    500: '#1b4352',
    950: '#000000',
  },
}

SCSS

$custom: #1b4352;
$custom-light: #5e7782;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4352",
  "rgb": {
    "r": 27,
    "g": 67,
    "b": 82
  },
  "hsl": {
    "h": 196.364,
    "s": 50.459,
    "l": 21.373
  },
  "oklch": {
    "l": 0.36124,
    "c": 0.05152,
    "h": 225.6
  },
  "luminance": 0.04857
}

Semantic roles & 50–950 ramp

primary

#1B4352

secondary

#885441

accent

#744EDA

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#05080A

muted

#797B7C

Preview Lab

Preview with #1B4352

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

Preview Lab → · Contrast checker → · Palette generator →