#1B5385#1B5385

#1B5385 is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.2% C 0.101 H 249.4°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#1B5385
RGB	rgb(27, 83, 133)
HSL	hsl(208, 66%, 31%)
HSV	hsv(208, 80%, 52%)
CMYK	cmyk(79.7%, 37.6%, 0%, 47.8%)
CIE-LAB	lab(34.22, 0.63, -33.12)
CIE-LCH	lch(34.22, 33.13, 271.08°)
OKLab	oklab(43.23% -0.0355 -0.0943)
OKLCH	oklch(43.23% 0.101 249.4)
XYZ	xyz(7.7773, 8.1121, 23.3416)
Luminance	0.0811 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5385 #854D1B

analogous

#1B8582 #1B5385 #1B1E85

triadic

#1B5385 #851B53 #53851B

tetradic

#1B5385 #821B85 #854D1B #1E851B

square

#1B5385 #821B85 #854D1B #1E851B

split-complementary

#1B5385 #851B1E #85821B

monochromatic

#06141F #113352 #1B5385 #2573B8 #4291D9

Accessibility & contrast

On white

8.01

#1B5385 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#1B5385 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5385

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5385	#FFFFFF	#000000	##FFFFFF
##1B5385	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C5687

Deuteranopia (green-blind)

#2C4C84

Tritanopia (blue-blind)

#005F65

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1b5385;
/* rgb */ color: rgb(27, 83, 133);
/* oklch */ color: oklch(43.2% 0.101 249.4);

Tailwind

colors: {
  custom: {
    50: '#6883a9',
    500: '#1b5385',
    950: '#000000',
  },
}

SCSS

$custom: #1b5385;
$custom-light: #6883a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5385",
  "rgb": {
    "r": 27,
    "g": 83,
    "b": 133
  },
  "hsl": {
    "h": 208.302,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.4323,
    "c": 0.10081,
    "h": 249.4
  },
  "luminance": 0.08113
}

Semantic roles & 50–950 ramp

primary

#1B5385

secondary

#B87B44

accent

#8F3FE9

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1B5385

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

Preview Lab → · Contrast checker → · Palette generator →