#1B5689#1B5689

#1B5689 is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.2% C 0.103 H 248.8°. Best body text is #FFFFFF at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#1B5689
RGB	rgb(27, 86, 137)
HSL	hsl(208, 67%, 32%)
HSV	hsv(208, 80%, 54%)
CMYK	cmyk(80.3%, 37.2%, 0%, 46.3%)
CIE-LAB	lab(35.39, 0.27, -33.71)
CIE-LCH	lch(35.39, 33.71, 270.46°)
OKLab	oklab(44.22% -0.0373 -0.096)
OKLCH	oklch(44.22% 0.103 248.8)
XYZ	xyz(8.2934, 8.6937, 24.9030)
Luminance	0.0869 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5689 #894E1B

analogous

#1B8985 #1B5689 #1B1F89

triadic

#1B5689 #891B56 #56891B

tetradic

#1B5689 #851B89 #894E1B #1F891B

square

#1B5689 #851B89 #894E1B #1F891B

split-complementary

#1B5689 #891B1F #89851B

monochromatic

#071623 #113656 #1B5689 #2576BC #4495DA

Accessibility & contrast

On white

7.67

#1B5689 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#1B5689 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5689

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5689	#FFFFFF	#000000	##FFFFFF
##1B5689	1.00	7.67	2.74	7.67
#FFFFFF	7.67	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E598B

Deuteranopia (green-blind)

#2E4F88

Tritanopia (blue-blind)

#006269

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1b5689;
/* rgb */ color: rgb(27, 86, 137);
/* oklch */ color: oklch(44.2% 0.103 248.8);

Tailwind

colors: {
  custom: {
    50: '#6985ac',
    500: '#1b5689',
    950: '#000000',
  },
}

SCSS

$custom: #1b5689;
$custom-light: #6985ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5689",
  "rgb": {
    "r": 27,
    "g": 86,
    "b": 137
  },
  "hsl": {
    "h": 207.818,
    "s": 67.073,
    "l": 32.157
  },
  "oklch": {
    "l": 0.44224,
    "c": 0.10299,
    "h": 248.8
  },
  "luminance": 0.08695
}

Semantic roles & 50–950 ramp

primary

#1B5689

secondary

#BC7C44

accent

#8E3EEA

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1B5689

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

Preview Lab → · Contrast checker → · Palette generator →