#1B7587#1B7587

#1B7587 is a mid, moderate cyan. Relative luminance 0.147; OKLCH L 52.0% C 0.084 H 214.8°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#1B7587
RGB	rgb(27, 117, 135)
HSL	hsl(190, 67%, 32%)
HSV	hsv(190, 80%, 53%)
CMYK	cmyk(80%, 13.3%, 0%, 47.1%)
CIE-LAB	lab(45.23, -18.88, -17.18)
CIE-LCH	lch(45.23, 25.53, 222.29°)
OKLab	oklab(52.03% -0.0691 -0.0479)
OKLCH	oklch(52.03% 0.084 214.8)
XYZ	xyz(11.1846, 14.7035, 25.1656)
Luminance	0.1470 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B7587 #872D1B

analogous

#1B8763 #1B7587 #1B3F87

triadic

#1B7587 #871B75 #75871B

tetradic

#1B7587 #631B87 #872D1B #3F871B

square

#1B7587 #631B87 #872D1B #3F871B

split-complementary

#1B7587 #871B3F #87631B

monochromatic

#071D21 #114954 #1B7587 #25A1BA #43C0D9

Accessibility & contrast

On white

5.33

#1B7587 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#1B7587 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B7587

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B7587	#FFFFFF	#000000	##FFFFFF
##1B7587	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#687188

Deuteranopia (green-blind)

#5A6687

Tritanopia (blue-blind)

#007C7B

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #1b7587;
/* rgb */ color: rgb(27, 117, 135);
/* oklch */ color: oklch(52.0% 0.084 214.8);

Tailwind

colors: {
  custom: {
    50: '#6b9daa',
    500: '#1b7587',
    950: '#000000',
  },
}

SCSS

$custom: #1b7587;
$custom-light: #6b9daa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b7587",
  "rgb": {
    "r": 27,
    "g": 117,
    "b": 135
  },
  "hsl": {
    "h": 190,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.52031,
    "c": 0.08407,
    "h": 214.8
  },
  "luminance": 0.14705
}

Semantic roles & 50–950 ramp

primary

#1B7587

secondary

#BA5744

accent

#5B3EEA

background

#F6F9FA

surface

#ECF2F4

border

#C7CCCE

text

#080E10

muted

#7A7E7F

Preview Lab

Preview with #1B7587

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

Preview Lab → · Contrast checker → · Palette generator →