#1B5782#1B5782

#1B5782 is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.0% C 0.093 H 244.3°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#1B5782
RGB	rgb(27, 87, 130)
HSL	hsl(205, 66%, 31%)
HSV	hsv(205, 79%, 51%)
CMYK	cmyk(79.2%, 33.1%, 0%, 49%)
CIE-LAB	lab(35.32, -3.12, -29.53)
CIE-LCH	lch(35.32, 29.69, 263.97°)
OKLab	oklab(44.05% -0.0404 -0.0838)
OKLCH	oklch(44.05% 0.093 244.3)
XYZ	xyz(7.8879, 8.6602, 22.3706)
Luminance	0.0866 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5782 #82461B

analogous

#1B8279 #1B5782 #1B2382

triadic

#1B5782 #821B57 #57821B

tetradic

#1B5782 #791B82 #82461B #23821B

square

#1B5782 #791B82 #82461B #23821B

split-complementary

#1B5782 #821B23 #82791B

monochromatic

#06131D #10354F #1B5782 #2679B5 #4098D7

Accessibility & contrast

On white

7.69

#1B5782 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#1B5782 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5782

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5782	#FFFFFF	#000000	##FFFFFF
##1B5782	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#435884

Deuteranopia (green-blind)

#354F81

Tritanopia (blue-blind)

#006166

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1b5782;
/* rgb */ color: rgb(27, 87, 130);
/* oklch */ color: oklch(44.0% 0.093 244.3);

Tailwind

colors: {
  custom: {
    50: '#6886a6',
    500: '#1b5782',
    950: '#000000',
  },
}

SCSS

$custom: #1b5782;
$custom-light: #6886a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5782",
  "rgb": {
    "r": 27,
    "g": 87,
    "b": 130
  },
  "hsl": {
    "h": 205.049,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.44047,
    "c": 0.09299,
    "h": 244.3
  },
  "luminance": 0.08661
}

Semantic roles & 50–950 ramp

primary

#1B5782

secondary

#B67343

accent

#863FE9

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1B5782

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

Preview Lab → · Contrast checker → · Palette generator →