#1B87A1#1B87A1

#1B87A1 is a mid, moderate cyan. Relative luminance 0.201; OKLCH L 57.8% C 0.098 H 219.0°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#1B87A1
RGB	rgb(27, 135, 161)
HSL	hsl(192, 71%, 37%)
HSV	hsv(192, 83%, 63%)
CMYK	cmyk(83.2%, 16.1%, 0%, 36.9%)
CIE-LAB	lab(51.99, -19.60, -22.07)
CIE-LCH	lch(51.99, 29.52, 228.39°)
OKLab	oklab(57.82% -0.0762 -0.0618)
OKLCH	oklch(57.82% 0.098 219)
XYZ	xyz(15.5462, 20.1322, 36.7778)
Luminance	0.2013 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B87A1 #A1351B

analogous

#1BA178 #1B87A1 #1B44A1

triadic

#1B87A1 #A11B87 #87A11B

tetradic

#1B87A1 #781BA1 #A1351B #44A11B

square

#1B87A1 #781BA1 #A1351B #44A11B

split-complementary

#1B87A1 #A11B44 #A1781B

monochromatic

#092F38 #125B6D #1B87A1 #24B3D5 #54C7E2

Accessibility & contrast

On white

4.18

#1B87A1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#1B87A1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B87A1

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B87A1	#FFFFFF	#000000	##000000
##1B87A1	1.00	4.18	5.03	5.03
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7783A2

Deuteranopia (green-blind)

#6577A1

Tritanopia (blue-blind)

#00908F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #1b87a1;
/* rgb */ color: rgb(27, 135, 161);
/* oklch */ color: oklch(57.8% 0.098 219.0);

Tailwind

colors: {
  custom: {
    50: '#71aabd',
    500: '#1b87a1',
    950: '#000000',
  },
}

SCSS

$custom: #1b87a1;
$custom-light: #71aabd;
$custom-dark: #000000;

JSON

{
  "hex": "#1b87a1",
  "rgb": {
    "r": 27,
    "g": 135,
    "b": 161
  },
  "hsl": {
    "h": 191.642,
    "s": 71.277,
    "l": 36.863
  },
  "oklch": {
    "l": 0.57815,
    "c": 0.0981,
    "h": 219
  },
  "luminance": 0.20134
}

Semantic roles & 50–950 ramp

primary

#1B87A1

secondary

#C56952

accent

#5D3AEE

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #1B87A1

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

Preview Lab → · Contrast checker → · Palette generator →