#1B5D8D#1B5D8D

#1B5D8D is a mid, moderate cyan. Relative luminance 0.100; OKLCH L 46.2% C 0.101 H 245.0°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#1B5D8D
RGB	rgb(27, 93, 141)
HSL	hsl(205, 68%, 33%)
HSV	hsv(205, 81%, 55%)
CMYK	cmyk(80.9%, 34%, 0%, 44.7%)
CIE-LAB	lab(37.81, -2.61, -32.30)
CIE-LCH	lch(37.81, 32.41, 265.38°)
OKLab	oklab(46.21% -0.0428 -0.0918)
OKLCH	oklch(46.21% 0.101 245)
XYZ	xyz(9.1722, 9.9837, 26.6378)
Luminance	0.0998 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5D8D #8D4B1B

analogous

#1B8D84 #1B5D8D #1B248D

triadic

#1B5D8D #8D1B5D #5D8D1B

tetradic

#1B5D8D #841B8D #8D4B1B #248D1B

square

#1B5D8D #841B8D #8D4B1B #248D1B

split-complementary

#1B5D8D #8D1B24 #8D841B

monochromatic

#071926 #113B5A #1B5D8D #257FC0 #479DDC

Accessibility & contrast

On white

7.01

#1B5D8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#1B5D8D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5D8D

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5D8D	#FFFFFF	#000000	##FFFFFF
##1B5D8D	1.00	7.01	3.00	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#475F8F

Deuteranopia (green-blind)

#36548C

Tritanopia (blue-blind)

#00696E

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1b5d8d;
/* rgb */ color: rgb(27, 93, 141);
/* oklch */ color: oklch(46.2% 0.101 245.0);

Tailwind

colors: {
  custom: {
    50: '#6a8aae',
    500: '#1b5d8d',
    950: '#000000',
  },
}

SCSS

$custom: #1b5d8d;
$custom-light: #6a8aae;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5d8d",
  "rgb": {
    "r": 27,
    "g": 93,
    "b": 141
  },
  "hsl": {
    "h": 205.263,
    "s": 67.857,
    "l": 32.941
  },
  "oklch": {
    "l": 0.46205,
    "c": 0.10126,
    "h": 245
  },
  "luminance": 0.09985
}

Semantic roles & 50–950 ramp

primary

#1B5D8D

secondary

#BD7946

accent

#863DEB

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1B5D8D

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

Preview Lab → · Contrast checker → · Palette generator →