#1B6580#1B6580

#1B6580 is a mid, moderate cyan. Relative luminance 0.111; OKLCH L 47.5% C 0.082 H 227.3°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#1B6580
RGB	rgb(27, 101, 128)
HSL	hsl(196, 65%, 30%)
HSV	hsv(196, 79%, 50%)
CMYK	cmyk(78.9%, 21.1%, 0%, 49.8%)
CIE-LAB	lab(39.74, -12.38, -21.40)
CIE-LCH	lch(39.74, 24.72, 239.95°)
OKLab	oklab(47.53% -0.0554 -0.0601)
OKLCH	oklch(47.53% 0.082 227.3)
XYZ	xyz(9.0004, 11.0978, 22.0856)
Luminance	0.1110 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B6580 #80361B

analogous

#1B8069 #1B6580 #1B3280

triadic

#1B6580 #801B65 #65801B

tetradic

#1B6580 #691B80 #80361B #32801B

square

#1B6580 #691B80 #80361B #32801B

split-complementary

#1B6580 #801B32 #80691B

monochromatic

#06151B #103D4D #1B6580 #268DB3 #3FAED6

Accessibility & contrast

On white

6.52

#1B6580 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#1B6580 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B6580

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B6580	#FFFFFF	#000000	##FFFFFF
##1B6580	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#576381

Deuteranopia (green-blind)

#495980

Tritanopia (blue-blind)

#006D6E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #1b6580;
/* rgb */ color: rgb(27, 101, 128);
/* oklch */ color: oklch(47.5% 0.082 227.3);

Tailwind

colors: {
  custom: {
    50: '#6891a5',
    500: '#1b6580',
    950: '#000000',
  },
}

SCSS

$custom: #1b6580;
$custom-light: #6891a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b6580",
  "rgb": {
    "r": 27,
    "g": 101,
    "b": 128
  },
  "hsl": {
    "h": 196.04,
    "s": 65.161,
    "l": 30.392
  },
  "oklch": {
    "l": 0.47532,
    "c": 0.08172,
    "h": 227.3
  },
  "luminance": 0.11099
}

Semantic roles & 50–950 ramp

primary

#1B6580

secondary

#B46143

accent

#6D40E8

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #1B6580

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

Preview Lab → · Contrast checker → · Palette generator →