#1B87A8#1B87A8

#1B87A8 is a mid, moderate cyan. Relative luminance 0.204; OKLCH L 58.1% C 0.103 H 224.5°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#1B87A8
RGB	rgb(27, 135, 168)
HSL	hsl(194, 72%, 38%)
HSV	hsv(194, 84%, 66%)
CMYK	cmyk(83.9%, 19.6%, 0%, 34.1%)
CIE-LAB	lab(52.27, -17.16, -25.67)
CIE-LCH	lch(52.27, 30.88, 236.25°)
OKLab	oklab(58.14% -0.0734 -0.0721)
OKLCH	oklch(58.14% 0.103 224.5)
XYZ	xyz(16.1809, 20.3861, 40.1203)
Luminance	0.2039 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B87A8 #A83C1B

analogous

#1BA883 #1B87A8 #1B40A8

triadic

#1B87A8 #A81B87 #87A81B

tetradic

#1B87A8 #831BA8 #A83C1B #40A81B

square

#1B87A8 #831BA8 #A83C1B #40A81B

split-complementary

#1B87A8 #A81B40 #A8831B

monochromatic

#0A323F #135D73 #1B87A8 #24B1DC #59C4E4

Accessibility & contrast

On white

4.14

#1B87A8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#1B87A8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B87A8

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B87A8	#FFFFFF	#000000	##000000
##1B87A8	1.00	4.14	5.08	5.08
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7584AA

Deuteranopia (green-blind)

#6277A8

Tritanopia (blue-blind)

#009192

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #1b87a8;
/* rgb */ color: rgb(27, 135, 168);
/* oklch */ color: oklch(58.1% 0.103 224.5);

Tailwind

colors: {
  custom: {
    50: '#72aac2',
    500: '#1b87a8',
    950: '#000000',
  },
}

SCSS

$custom: #1b87a8;
$custom-light: #72aac2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b87a8",
  "rgb": {
    "r": 27,
    "g": 135,
    "b": 168
  },
  "hsl": {
    "h": 194.043,
    "s": 72.308,
    "l": 38.235
  },
  "oklch": {
    "l": 0.58137,
    "c": 0.1029,
    "h": 224.5
  },
  "luminance": 0.20388
}

Semantic roles & 50–950 ramp

primary

#1B87A8

secondary

#C87157

accent

#6339EF

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #1B87A8

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

Preview Lab → · Contrast checker → · Palette generator →