#1B3650#1B3650

#1B3650 is a dark, muted cyan. Relative luminance 0.035; OKLCH L 32.5% C 0.057 H 249.2°. Best body text is #FFFFFF at 12.42:1 contrast (WCAG AA passes).

Color values

HEX	#1B3650
RGB	rgb(27, 54, 80)
HSL	hsl(209, 50%, 21%)
HSV	hsv(209, 66%, 31%)
CMYK	cmyk(66.3%, 32.5%, 0%, 68.6%)
CIE-LAB	lab(21.76, -1.01, -18.95)
CIE-LCH	lch(21.76, 18.98, 266.95°)
OKLab	oklab(32.48% -0.0203 -0.0534)
OKLCH	oklch(32.48% 0.057 249.2)
XYZ	xyz(3.2186, 3.4502, 8.0842)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3650 #50351B

analogous

#1B504F #1B3650 #1B1B50

triadic

#1B3650 #501B36 #36501B

tetradic

#1B3650 #4F1B50 #50351B #1B501B

square

#1B3650 #4F1B50 #50351B #1B501B

split-complementary

#1B3650 #501B1B #504F1B

monochromatic

#080F17 #0C1722 #1B3650 #2A557E #3A74AC

Accessibility & contrast

On white

12.42

#1B3650 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1B3650 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3650

12.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3650	#FFFFFF	#000000	##FFFFFF
##1B3650	1.00	12.42	1.69	12.42
#FFFFFF	12.42	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3751

Deuteranopia (green-blind)

#24324F

Tritanopia (blue-blind)

#003C3F

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b3650;
/* rgb */ color: rgb(27, 54, 80);
/* oklch */ color: oklch(32.5% 0.057 249.2);

Tailwind

colors: {
  custom: {
    50: '#5d6c81',
    500: '#1b3650',
    950: '#000000',
  },
}

SCSS

$custom: #1b3650;
$custom-light: #5d6c81;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3650",
  "rgb": {
    "r": 27,
    "g": 54,
    "b": 80
  },
  "hsl": {
    "h": 209.434,
    "s": 49.533,
    "l": 20.98
  },
  "oklch": {
    "l": 0.32479,
    "c": 0.05714,
    "h": 249.2
  },
  "luminance": 0.03451
}

Semantic roles & 50–950 ramp

primary

#1B3650

secondary

#866341

accent

#934FD9

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #1B3650

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

Preview Lab → · Contrast checker → · Palette generator →