#1B5690#1B5690

#1B5690 is a dark, moderate cyan. Relative luminance 0.089; OKLCH L 44.7% C 0.112 H 251.6°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#1B5690
RGB	rgb(27, 86, 144)
HSL	hsl(210, 68%, 34%)
HSV	hsv(210, 81%, 56%)
CMYK	cmyk(81.3%, 40.3%, 0%, 43.5%)
CIE-LAB	lab(35.79, 3.05, -37.33)
CIE-LCH	lch(35.79, 37.45, 274.67°)
OKLab	oklab(44.67% -0.0354 -0.1066)
OKLCH	oklch(44.67% 0.112 251.6)
XYZ	xyz(8.8119, 8.9011, 27.6338)
Luminance	0.0890 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5690 #90551B

analogous

#1B908F #1B5690 #1B1B90

triadic

#1B5690 #901B56 #56901B

tetradic

#1B5690 #8F1B90 #90551B #1B901B

square

#1B5690 #8F1B90 #90551B #1B901B

split-complementary

#1B5690 #901B1B #908F1B

monochromatic

#081829 #11375C #1B5690 #2575C4 #4993DD

Accessibility & contrast

On white

7.55

#1B5690 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#1B5690 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5690

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5690	#FFFFFF	#000000	##FFFFFF
##1B5690	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A5A92

Deuteranopia (green-blind)

#274F8F

Tritanopia (blue-blind)

#00646C

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1b5690;
/* rgb */ color: rgb(27, 86, 144);
/* oklch */ color: oklch(44.7% 0.112 251.6);

Tailwind

colors: {
  custom: {
    50: '#6b85b1',
    500: '#1b5690',
    950: '#000000',
  },
}

SCSS

$custom: #1b5690;
$custom-light: #6b85b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5690",
  "rgb": {
    "r": 27,
    "g": 86,
    "b": 144
  },
  "hsl": {
    "h": 209.744,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.44674,
    "c": 0.11233,
    "h": 251.6
  },
  "luminance": 0.08902
}

Semantic roles & 50–950 ramp

primary

#1B5690

secondary

#BF8348

accent

#933DEB

background

#F6F8FA

surface

#ECEFF5

border

#C7CACF

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1B5690

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

Preview Lab → · Contrast checker → · Palette generator →