#1B5484#1B5484

#1B5484 is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.4% C 0.098 H 248.1°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#1B5484
RGB	rgb(27, 84, 132)
HSL	hsl(207, 66%, 31%)
HSV	hsv(207, 80%, 52%)
CMYK	cmyk(79.5%, 36.4%, 0%, 48.2%)
CIE-LAB	lab(34.48, -0.42, -32.09)
CIE-LCH	lch(34.48, 32.10, 269.25°)
OKLab	oklab(43.42% -0.0368 -0.0913)
OKLCH	oklch(43.42% 0.098 248.1)
XYZ	xyz(7.7856, 8.2387, 23.0052)
Luminance	0.0824 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5484 #844B1B

analogous

#1B847F #1B5484 #1B1F84

triadic

#1B5484 #841B54 #54841B

tetradic

#1B5484 #7F1B84 #844B1B #1F841B

square

#1B5484 #7F1B84 #844B1B #1F841B

split-complementary

#1B5484 #841B1F #847F1B

monochromatic

#06131E #113451 #1B5484 #2574B7 #4193D8

Accessibility & contrast

On white

7.93

#1B5484 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#1B5484 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5484

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5484	#FFFFFF	#000000	##FFFFFF
##1B5484	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E5686

Deuteranopia (green-blind)

#2E4D83

Tritanopia (blue-blind)

#006065

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1b5484;
/* rgb */ color: rgb(27, 84, 132);
/* oklch */ color: oklch(43.4% 0.098 248.1);

Tailwind

colors: {
  custom: {
    50: '#6883a8',
    500: '#1b5484',
    950: '#000000',
  },
}

SCSS

$custom: #1b5484;
$custom-light: #6883a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5484",
  "rgb": {
    "r": 27,
    "g": 84,
    "b": 132
  },
  "hsl": {
    "h": 207.429,
    "s": 66.038,
    "l": 31.176
  },
  "oklch": {
    "l": 0.43416,
    "c": 0.09845,
    "h": 248.1
  },
  "luminance": 0.0824
}

Semantic roles & 50–950 ramp

primary

#1B5484

secondary

#B77843

accent

#8D3FE9

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1B5484

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

Preview Lab → · Contrast checker → · Palette generator →