#1F4752#1F4752

#1F4752 is a dark, muted cyan. Relative luminance 0.054; OKLCH L 37.4% C 0.049 H 218.3°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#1F4752
RGB	rgb(31, 71, 82)
HSL	hsl(193, 45%, 22%)
HSV	hsv(193, 62%, 32%)
CMYK	cmyk(62.2%, 13.4%, 0%, 67.8%)
CIE-LAB	lab(27.86, -10.34, -10.83)
CIE-LCH	lch(27.86, 14.98, 226.32°)
OKLab	oklab(37.4% -0.0381 -0.03)
OKLCH	oklch(37.4% 0.049 218.3)
XYZ	xyz(4.3407, 5.4066, 8.7958)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4752 #522A1F

analogous

#1F5244 #1F4752 #1F2E52

triadic

#1F4752 #521F47 #47521F

tetradic

#1F4752 #441F52 #522A1F #2E521F

square

#1F4752 #441F52 #522A1F #2E521F

split-complementary

#1F4752 #521F2E #52441F

monochromatic

#081316 #0E2126 #1F4752 #306D7E #4194AB

Accessibility & contrast

On white

10.09

#1F4752 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#1F4752 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4752

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4752	#FFFFFF	#000000	##FFFFFF
##1F4752	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#404553

Deuteranopia (green-blind)

#383F52

Tritanopia (blue-blind)

#004B4A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1f4752;
/* rgb */ color: rgb(31, 71, 82);
/* oklch */ color: oklch(37.4% 0.049 218.3);

Tailwind

colors: {
  custom: {
    50: '#607a82',
    500: '#1f4752',
    950: '#000000',
  },
}

SCSS

$custom: #1f4752;
$custom-light: #607a82;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4752",
  "rgb": {
    "r": 31,
    "g": 71,
    "b": 82
  },
  "hsl": {
    "h": 192.941,
    "s": 45.133,
    "l": 22.157
  },
  "oklch": {
    "l": 0.37403,
    "c": 0.0485,
    "h": 218.3
  },
  "luminance": 0.05407
}

Semantic roles & 50–950 ramp

primary

#1F4752

secondary

#875446

accent

#6F53D5

background

#F5F7F7

surface

#EAEDEE

border

#C6C8C9

text

#05090A

muted

#797B7C

Preview Lab

Preview with #1F4752

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

Preview Lab → · Contrast checker → · Palette generator →