#1B4F77#1B4F77

#1B4F77 is a dark, moderate cyan. Relative luminance 0.072; OKLCH L 41.4% C 0.086 H 245.5°. Best body text is #FFFFFF at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#1B4F77
RGB	rgb(27, 79, 119)
HSL	hsl(206, 63%, 29%)
HSV	hsv(206, 77%, 47%)
CMYK	cmyk(77.3%, 33.6%, 0%, 53.3%)
CIE-LAB	lab(32.16, -2.32, -27.71)
CIE-LCH	lch(32.16, 27.80, 265.22°)
OKLab	oklab(41.36% -0.0358 -0.0786)
OKLCH	oklch(41.36% 0.086 245.5)
XYZ	xyz(6.5765, 7.1561, 18.4839)
Luminance	0.0716 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4F77 #77431B

analogous

#1B7771 #1B4F77 #1B2177

triadic

#1B4F77 #771B4F #4F771B

tetradic

#1B4F77 #711B77 #77431B #21771B

square

#1B4F77 #711B77 #77431B #21771B

split-complementary

#1B4F77 #771B21 #77711B

monochromatic

#061119 #102E45 #1B4F77 #2670A9 #3A90D2

Accessibility & contrast

On white

8.64

#1B4F77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#1B4F77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4F77

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4F77	#FFFFFF	#000000	##FFFFFF
##1B4F77	1.00	8.64	2.43	8.64
#FFFFFF	8.64	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D5079

Deuteranopia (green-blind)

#304876

Tritanopia (blue-blind)

#00595D

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b4f77;
/* rgb */ color: rgb(27, 79, 119);
/* oklch */ color: oklch(41.4% 0.086 245.5);

Tailwind

colors: {
  custom: {
    50: '#65809e',
    500: '#1b4f77',
    950: '#000000',
  },
}

SCSS

$custom: #1b4f77;
$custom-light: #65809e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4f77",
  "rgb": {
    "r": 27,
    "g": 79,
    "b": 119
  },
  "hsl": {
    "h": 206.087,
    "s": 63.014,
    "l": 28.627
  },
  "oklch": {
    "l": 0.41359,
    "c": 0.08634,
    "h": 245.5
  },
  "luminance": 0.07157
}

Semantic roles & 50–950 ramp

primary

#1B4F77

secondary

#AB7042

accent

#8942E6

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1B4F77

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

Preview Lab → · Contrast checker → · Palette generator →