#1F596F#1F596F

#1F596F is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 43.7% C 0.069 H 226.9°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#1F596F
RGB	rgb(31, 89, 111)
HSL	hsl(197, 56%, 28%)
HSV	hsv(197, 72%, 44%)
CMYK	cmyk(72.1%, 19.8%, 0%, 56.5%)
CIE-LAB	lab(35.17, -10.92, -18.02)
CIE-LCH	lch(35.17, 21.07, 238.80°)
OKLab	oklab(43.66% -0.0472 -0.0504)
OKLCH	oklch(43.66% 0.069 226.9)
XYZ	xyz(7.0055, 8.5830, 16.3233)
Luminance	0.0858 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F596F #6F351F

analogous

#1F6F5D #1F596F #1F316F

triadic

#1F596F #6F1F59 #596F1F

tetradic

#1F596F #5D1F6F #6F351F #316F1F

square

#1F596F #5D1F6F #6F351F #316F1F

split-complementary

#1F596F #6F1F31 #6F5D1F

monochromatic

#071318 #12333F #1F596F #2C7F9F #3FA3C9

Accessibility & contrast

On white

7.73

#1F596F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#1F596F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F596F

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F596F	#FFFFFF	#000000	##FFFFFF
##1F596F	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D5770

Deuteranopia (green-blind)

#424F6F

Tritanopia (blue-blind)

#005F60

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1f596f;
/* rgb */ color: rgb(31, 89, 111);
/* oklch */ color: oklch(43.7% 0.069 226.9);

Tailwind

colors: {
  custom: {
    50: '#668898',
    500: '#1f596f',
    950: '#000000',
  },
}

SCSS

$custom: #1f596f;
$custom-light: #668898;
$custom-dark: #000000;

JSON

{
  "hex": "#1f596f",
  "rgb": {
    "r": 31,
    "g": 89,
    "b": 111
  },
  "hsl": {
    "h": 196.5,
    "s": 56.338,
    "l": 27.843
  },
  "oklch": {
    "l": 0.43656,
    "c": 0.06907,
    "h": 226.9
  },
  "luminance": 0.08584
}

Semantic roles & 50–950 ramp

primary

#1F596F

secondary

#A36047

accent

#7248E0

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #1F596F

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

Preview Lab → · Contrast checker → · Palette generator →