#1B5282#1B5282

#1B5282 is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 42.8% C 0.098 H 248.8°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#1B5282
RGB	rgb(27, 82, 130)
HSL	hsl(208, 66%, 31%)
HSV	hsv(208, 79%, 51%)
CMYK	cmyk(79.2%, 36.9%, 0%, 49%)
CIE-LAB	lab(33.73, 0.08, -32.05)
CIE-LCH	lch(33.73, 32.05, 270.15°)
OKLab	oklab(42.79% -0.0354 -0.0912)
OKLCH	oklch(42.79% 0.098 248.8)
XYZ	xyz(7.4970, 7.8784, 22.2403)
Luminance	0.0788 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5282 #824B1B

analogous

#1B827E #1B5282 #1B1F82

triadic

#1B5282 #821B52 #52821B

tetradic

#1B5282 #7E1B82 #824B1B #1F821B

square

#1B5282 #7E1B82 #824B1B #1F821B

split-complementary

#1B5282 #821B1F #827E1B

monochromatic

#06121D #10324F #1B5282 #2672B5 #4091D7

Accessibility & contrast

On white

8.15

#1B5282 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#1B5282 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5282

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5282	#FFFFFF	#000000	##FFFFFF
##1B5282	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C5584

Deuteranopia (green-blind)

#2D4B81

Tritanopia (blue-blind)

#005D64

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1b5282;
/* rgb */ color: rgb(27, 82, 130);
/* oklch */ color: oklch(42.8% 0.098 248.8);

Tailwind

colors: {
  custom: {
    50: '#6882a6',
    500: '#1b5282',
    950: '#000000',
  },
}

SCSS

$custom: #1b5282;
$custom-light: #6882a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5282",
  "rgb": {
    "r": 27,
    "g": 82,
    "b": 130
  },
  "hsl": {
    "h": 207.961,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.42792,
    "c": 0.09785,
    "h": 248.8
  },
  "luminance": 0.07879
}

Semantic roles & 50–950 ramp

primary

#1B5282

secondary

#B67943

accent

#8E3FE9

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1B5282

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

Preview Lab → · Contrast checker → · Palette generator →