#1B568B#1B568B

#1B568B is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.4% C 0.106 H 249.7°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#1B568B
RGB	rgb(27, 86, 139)
HSL	hsl(208, 67%, 33%)
HSV	hsv(208, 81%, 55%)
CMYK	cmyk(80.6%, 38.1%, 0%, 45.5%)
CIE-LAB	lab(35.50, 1.06, -34.75)
CIE-LCH	lch(35.50, 34.77, 271.75°)
OKLab	oklab(44.35% -0.0367 -0.0991)
OKLCH	oklch(44.35% 0.106 249.7)
XYZ	xyz(8.4382, 8.7517, 25.6656)
Luminance	0.0875 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B568B #8B501B

analogous

#1B8B88 #1B568B #1B1E8B

triadic

#1B568B #8B1B56 #568B1B

tetradic

#1B568B #881B8B #8B501B #1E8B1B

square

#1B568B #881B8B #8B501B #1E8B1B

split-complementary

#1B568B #8B1B1E #8B881B

monochromatic

#071725 #113658 #1B568B #2576BE #4594DB

Accessibility & contrast

On white

7.63

#1B568B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#1B568B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B568B

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B568B	#FFFFFF	#000000	##FFFFFF
##1B568B	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D598D

Deuteranopia (green-blind)

#2C4F8A

Tritanopia (blue-blind)

#00636A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1b568b;
/* rgb */ color: rgb(27, 86, 139);
/* oklch */ color: oklch(44.4% 0.106 249.7);

Tailwind

colors: {
  custom: {
    50: '#6a85ad',
    500: '#1b568b',
    950: '#000000',
  },
}

SCSS

$custom: #1b568b;
$custom-light: #6a85ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1b568b",
  "rgb": {
    "r": 27,
    "g": 86,
    "b": 139
  },
  "hsl": {
    "h": 208.393,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.44351,
    "c": 0.10564,
    "h": 249.7
  },
  "luminance": 0.08753
}

Semantic roles & 50–950 ramp

primary

#1B568B

secondary

#BC7E45

accent

#8F3DEA

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1B568B

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

Preview Lab → · Contrast checker → · Palette generator →