#1F87AB#1F87AB

#1F87AB is a mid, moderate cyan. Relative luminance 0.206; OKLCH L 58.4% C 0.104 H 227.0°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#1F87AB
RGB	rgb(31, 135, 171)
HSL	hsl(195, 69%, 40%)
HSV	hsv(195, 82%, 67%)
CMYK	cmyk(81.9%, 21.1%, 0%, 32.9%)
CIE-LAB	lab(52.46, -15.74, -27.10)
CIE-LCH	lch(52.46, 31.34, 239.86°)
OKLab	oklab(58.35% -0.0709 -0.0762)
OKLCH	oklch(58.35% 0.104 227)
XYZ	xyz(16.5767, 20.5575, 41.6145)
Luminance	0.2056 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F87AB #AB431F

analogous

#1FAB89 #1F87AB #1F41AB

triadic

#1F87AB #AB1F87 #87AB1F

tetradic

#1F87AB #891FAB #AB431F #41AB1F

square

#1F87AB #891FAB #AB431F #41AB1F

split-complementary

#1F87AB #AB1F41 #AB891F

monochromatic

#0C3543 #165E77 #1F87AB #2EADD9 #62C1E3

Accessibility & contrast

On white

4.11

#1F87AB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#1F87AB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1F87AB

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F87AB	#FFFFFF	#000000	##000000
##1F87AB	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7484AD

Deuteranopia (green-blind)

#6177AB

Tritanopia (blue-blind)

#009193

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #1f87ab;
/* rgb */ color: rgb(31, 135, 171);
/* oklch */ color: oklch(58.4% 0.104 227.0);

Tailwind

colors: {
  custom: {
    50: '#73aac4',
    500: '#1f87ab',
    950: '#000000',
  },
}

SCSS

$custom: #1f87ab;
$custom-light: #73aac4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f87ab",
  "rgb": {
    "r": 31,
    "g": 135,
    "b": 171
  },
  "hsl": {
    "h": 195.429,
    "s": 69.307,
    "l": 39.608
  },
  "oklch": {
    "l": 0.58351,
    "c": 0.10411,
    "h": 227
  },
  "luminance": 0.2056
}

Semantic roles & 50–950 ramp

primary

#1F87AB

secondary

#C7795E

accent

#693CEC

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #1F87AB

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

Preview Lab → · Contrast checker → · Palette generator →