#1B4973#1B4973

#1B4973 is a dark, moderate cyan. Relative luminance 0.062; OKLCH L 39.6% C 0.087 H 249.3°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#1B4973
RGB	rgb(27, 73, 115)
HSL	hsl(209, 62%, 28%)
HSV	hsv(209, 77%, 45%)
CMYK	cmyk(76.5%, 36.5%, 0%, 54.9%)
CIE-LAB	lab(30.00, 0.02, -28.61)
CIE-LCH	lch(30.00, 28.61, 270.03°)
OKLab	oklab(39.59% -0.0308 -0.0813)
OKLCH	oklch(39.59% 0.087 249.3)
XYZ	xyz(5.9279, 6.2352, 17.1074)
Luminance	0.0624 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4973 #73451B

analogous

#1B7371 #1B4973 #1B1D73

triadic

#1B4973 #731B49 #49731B

tetradic

#1B4973 #711B73 #73451B #1D731B

square

#1B4973 #711B73 #73451B #1D731B

split-complementary

#1B4973 #731B1D #73711B

monochromatic

#061019 #0F2A41 #1B4973 #2768A5 #3888D0

Accessibility & contrast

On white

9.34

#1B4973 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#1B4973 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4973

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4973	#FFFFFF	#000000	##FFFFFF
##1B4973	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#364B75

Deuteranopia (green-blind)

#294372

Tritanopia (blue-blind)

#005358

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b4973;
/* rgb */ color: rgb(27, 73, 115);
/* oklch */ color: oklch(39.6% 0.087 249.3);

Tailwind

colors: {
  custom: {
    50: '#647b9b',
    500: '#1b4973',
    950: '#000000',
  },
}

SCSS

$custom: #1b4973;
$custom-light: #647b9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4973",
  "rgb": {
    "r": 27,
    "g": 73,
    "b": 115
  },
  "hsl": {
    "h": 208.636,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.39586,
    "c": 0.08694,
    "h": 249.3
  },
  "luminance": 0.06236
}

Semantic roles & 50–950 ramp

primary

#1B4973

secondary

#A87342

accent

#9043E5

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1B4973

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

Preview Lab → · Contrast checker → · Palette generator →