#1F616F#1F616F

#1F616F is a mid, moderate cyan. Relative luminance 0.100; OKLCH L 45.8% C 0.068 H 214.7°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#1F616F
RGB	rgb(31, 97, 111)
HSL	hsl(191, 56%, 28%)
HSV	hsv(191, 72%, 44%)
CMYK	cmyk(72.1%, 12.6%, 0%, 56.5%)
CIE-LAB	lab(37.82, -15.56, -13.96)
CIE-LCH	lch(37.82, 20.90, 221.89°)
OKLab	oklab(45.78% -0.0562 -0.0389)
OKLCH	oklch(45.78% 0.068 214.7)
XYZ	xyz(7.7078, 9.9875, 16.5574)
Luminance	0.0999 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F616F #6F2D1F

analogous

#1F6F55 #1F616F #1F396F

triadic

#1F616F #6F1F61 #616F1F

tetradic

#1F616F #551F6F #6F2D1F #396F1F

square

#1F616F #551F6F #6F2D1F #396F1F

split-complementary

#1F616F #6F1F39 #6F551F

monochromatic

#071518 #12373F #1F616F #2C8B9F #3FB1C9

Accessibility & contrast

On white

7.01

#1F616F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#1F616F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F616F

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F616F	#FFFFFF	#000000	##FFFFFF
##1F616F	1.00	7.01	3.00	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575E70

Deuteranopia (green-blind)

#4C556F

Tritanopia (blue-blind)

#006665

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1f616f;
/* rgb */ color: rgb(31, 97, 111);
/* oklch */ color: oklch(45.8% 0.068 214.7);

Tailwind

colors: {
  custom: {
    50: '#678e98',
    500: '#1f616f',
    950: '#000000',
  },
}

SCSS

$custom: #1f616f;
$custom-light: #678e98;
$custom-dark: #000000;

JSON

{
  "hex": "#1f616f",
  "rgb": {
    "r": 31,
    "g": 97,
    "b": 111
  },
  "hsl": {
    "h": 190.5,
    "s": 56.338,
    "l": 27.843
  },
  "oklch": {
    "l": 0.45782,
    "c": 0.06833,
    "h": 214.7
  },
  "luminance": 0.09988
}

Semantic roles & 50–950 ramp

primary

#1F616F

secondary

#A35747

accent

#6348E0

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#070C0D

muted

#7A7D7E

Preview Lab

Preview with #1F616F

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

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