#1B6683#1B6683

#1B6683 is a mid, moderate cyan. Relative luminance 0.114; OKLCH L 47.9% C 0.084 H 228.9°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#1B6683
RGB	rgb(27, 102, 131)
HSL	hsl(197, 66%, 31%)
HSV	hsv(197, 79%, 51%)
CMYK	cmyk(79.4%, 22.1%, 0%, 48.6%)
CIE-LAB	lab(40.20, -11.86, -22.51)
CIE-LCH	lch(40.20, 25.44, 242.21°)
OKLab	oklab(47.94% -0.0552 -0.0633)
OKLCH	oklch(47.94% 0.084 228.9)
XYZ	xyz(9.2984, 11.3733, 23.1735)
Luminance	0.1137 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B6683 #83381B

analogous

#1B836C #1B6683 #1B3283

triadic

#1B6683 #831B66 #66831B

tetradic

#1B6683 #6C1B83 #83381B #32831B

square

#1B6683 #6C1B83 #83381B #32831B

split-complementary

#1B6683 #831B32 #836C1B

monochromatic

#06171E #113E50 #1B6683 #258EB6 #41AED8

Accessibility & contrast

On white

6.41

#1B6683 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#1B6683 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B6683

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B6683	#FFFFFF	#000000	##FFFFFF
##1B6683	1.00	6.41	3.27	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#576484

Deuteranopia (green-blind)

#495A83

Tritanopia (blue-blind)

#006E70

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #1b6683;
/* rgb */ color: rgb(27, 102, 131);
/* oklch */ color: oklch(47.9% 0.084 228.9);

Tailwind

colors: {
  custom: {
    50: '#6991a7',
    500: '#1b6683',
    950: '#000000',
  },
}

SCSS

$custom: #1b6683;
$custom-light: #6991a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b6683",
  "rgb": {
    "r": 27,
    "g": 102,
    "b": 131
  },
  "hsl": {
    "h": 196.731,
    "s": 65.823,
    "l": 30.98
  },
  "oklch": {
    "l": 0.47942,
    "c": 0.08398,
    "h": 228.9
  },
  "luminance": 0.11374
}

Semantic roles & 50–950 ramp

primary

#1B6683

secondary

#B66343

accent

#6E3FE9

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #1B6683

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

Preview Lab → · Contrast checker → · Palette generator →