#1B6DB3#1B6DB3

#1B6DB3 is a mid, vivid cyan. Relative luminance 0.144; OKLCH L 52.4% C 0.133 H 249.6°. Best body text is #FFFFFF at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#1B6DB3
RGB	rgb(27, 109, 179)
HSL	hsl(208, 74%, 40%)
HSV	hsv(208, 85%, 70%)
CMYK	cmyk(84.9%, 39.1%, 0%, 29.8%)
CIE-LAB	lab(44.83, 2.18, -43.74)
CIE-LCH	lch(44.83, 43.79, 272.86°)
OKLab	oklab(52.41% -0.0464 -0.125)
OKLCH	oklch(52.41% 0.133 249.6)
XYZ	xyz(14.0542, 14.4232, 44.6823)
Luminance	0.1442 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B6DB3 #B3611B

analogous

#1BB3AD #1B6DB3 #1B21B3

triadic

#1B6DB3 #B31B6D #6DB31B

tetradic

#1B6DB3 #AD1BB3 #B3611B #21B31B

square

#1B6DB3 #AD1BB3 #B3611B #21B31B

split-complementary

#1B6DB3 #B31B21 #B3AD1B

monochromatic

#0B2C49 #134D7E #1B6DB3 #2C8DDF #61A9E7

Accessibility & contrast

On white

5.41

#1B6DB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#1B6DB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B6DB3

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B6DB3	#FFFFFF	#000000	##FFFFFF
##1B6DB3	1.00	5.41	3.88	5.41
#FFFFFF	5.41	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B71B6

Deuteranopia (green-blind)

#3364B2

Tritanopia (blue-blind)

#007E87

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #1b6db3;
/* rgb */ color: rgb(27, 109, 179);
/* oklch */ color: oklch(52.4% 0.133 249.6);

Tailwind

colors: {
  custom: {
    50: '#7396ca',
    500: '#1b6db3',
    950: '#000000',
  },
}

SCSS

$custom: #1b6db3;
$custom-light: #7396ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1b6db3",
  "rgb": {
    "r": 27,
    "g": 109,
    "b": 179
  },
  "hsl": {
    "h": 207.632,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.5241,
    "c": 0.13331,
    "h": 249.6
  },
  "luminance": 0.14425
}

Semantic roles & 50–950 ramp

primary

#1B6DB3

secondary

#CC915E

accent

#8D37F0

background

#F7F9FC

surface

#EEF1F8

border

#C9CBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #1B6DB3

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

Preview Lab → · Contrast checker → · Palette generator →