#1B5779#1B5779

#1B5779 is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.5% C 0.082 H 238.1°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#1B5779
RGB	rgb(27, 87, 121)
HSL	hsl(202, 64%, 29%)
HSV	hsv(202, 78%, 47%)
CMYK	cmyk(77.7%, 28.1%, 0%, 52.5%)
CIE-LAB	lab(34.86, -6.60, -24.71)
CIE-LCH	lch(34.86, 25.57, 255.06°)
OKLab	oklab(43.53% -0.0434 -0.0698)
OKLCH	oklch(43.53% 0.082 238.1)
XYZ	xyz(7.3100, 8.4290, 19.3272)
Luminance	0.0843 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5779 #793D1B

analogous

#1B796C #1B5779 #1B2879

triadic

#1B5779 #791B57 #57791B

tetradic

#1B5779 #6C1B79 #793D1B #28791B

square

#1B5779 #6C1B79 #793D1B #28791B

split-complementary

#1B5779 #791B28 #796C1B

monochromatic

#061219 #103347 #1B5779 #267BAB #3B9CD3

Accessibility & contrast

On white

7.82

#1B5779 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#1B5779 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5779

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5779	#FFFFFF	#000000	##FFFFFF
##1B5779	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47577B

Deuteranopia (green-blind)

#3A4E78

Tritanopia (blue-blind)

#006063

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1b5779;
/* rgb */ color: rgb(27, 87, 121);
/* oklch */ color: oklch(43.5% 0.082 238.1);

Tailwind

colors: {
  custom: {
    50: '#6686a0',
    500: '#1b5779',
    950: '#000000',
  },
}

SCSS

$custom: #1b5779;
$custom-light: #6686a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5779",
  "rgb": {
    "r": 27,
    "g": 87,
    "b": 121
  },
  "hsl": {
    "h": 201.702,
    "s": 63.514,
    "l": 29.02
  },
  "oklch": {
    "l": 0.43531,
    "c": 0.08217,
    "h": 238.1
  },
  "luminance": 0.0843
}

Semantic roles & 50–950 ramp

primary

#1B5779

secondary

#AD6943

accent

#7D41E7

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070B0E

muted

#7A7C7E

Preview Lab

Preview with #1B5779

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

Preview Lab → · Contrast checker → · Palette generator →