#1B5A9E#1B5A9E

#1B5A9E is a mid, vivid cyan. Relative luminance 0.100; OKLCH L 46.6% C 0.127 H 253.7°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#1B5A9E
RGB	rgb(27, 90, 158)
HSL	hsl(211, 71%, 36%)
HSV	hsv(211, 83%, 62%)
CMYK	cmyk(82.9%, 43%, 0%, 38%)
CIE-LAB	lab(37.87, 6.03, -42.46)
CIE-LCH	lch(37.87, 42.88, 278.08°)
OKLab	oklab(46.56% -0.0355 -0.1216)
OKLCH	oklch(46.56% 0.127 253.7)
XYZ	xyz(10.2774, 10.0127, 33.7321)
Luminance	0.1001 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5A9E #9E5F1B

analogous

#1B9C9E #1B5A9E #1E1B9E

triadic

#1B5A9E #9E1B5A #5A9E1B

tetradic

#1B5A9E #9E1B9C #9E5F1B #1B9E1E

square

#1B5A9E #9E1B9C #9E5F1B #1B9E1E

split-complementary

#1B5A9E #9E1E1B #9C9E1B

monochromatic

#091E35 #123C6A #1B5A9E #2478D2 #5297E1

Accessibility & contrast

On white

6.99

#1B5A9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.00

#1B5A9E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5A9E

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5A9E	#FFFFFF	#000000	##FFFFFF
##1B5A9E	1.00	6.99	3.00	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#385FA1

Deuteranopia (green-blind)

#20549D

Tritanopia (blue-blind)

#006A74

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1b5a9e;
/* rgb */ color: rgb(27, 90, 158);
/* oklch */ color: oklch(46.6% 0.127 253.7);

Tailwind

colors: {
  custom: {
    50: '#6e88bb',
    500: '#1b5a9e',
    950: '#000000',
  },
}

SCSS

$custom: #1b5a9e;
$custom-light: #6e88bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5a9e",
  "rgb": {
    "r": 27,
    "g": 90,
    "b": 158
  },
  "hsl": {
    "h": 211.145,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.46564,
    "c": 0.12669,
    "h": 253.7
  },
  "luminance": 0.10014
}

Semantic roles & 50–950 ramp

primary

#1B5A9E

secondary

#C48D51

accent

#973AEE

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B12

muted

#7B7C81

Preview Lab

Preview with #1B5A9E

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

Preview Lab → · Contrast checker → · Palette generator →