#1F545F#1F545F

#1F545F is a dark, muted cyan. Relative luminance 0.075; OKLCH L 41.6% C 0.058 H 213.7°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#1F545F
RGB	rgb(31, 84, 95)
HSL	hsl(190, 51%, 25%)
HSV	hsv(190, 67%, 37%)
CMYK	cmyk(67.4%, 11.6%, 0%, 62.7%)
CIE-LAB	lab(32.83, -13.61, -11.59)
CIE-LCH	lch(32.83, 17.88, 220.43°)
OKLab	oklab(41.56% -0.0483 -0.0322)
OKLCH	oklch(41.56% 0.058 213.7)
XYZ	xyz(5.8001, 7.4576, 11.9580)
Luminance	0.0746 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F545F #5F2A1F

analogous

#1F5F4A #1F545F #1F345F

triadic

#1F545F #5F1F54 #545F1F

tetradic

#1F545F #4A1F5F #5F2A1F #345F1F

square

#1F545F #4A1F5F #5F2A1F #345F1F

split-complementary

#1F545F #5F1F34 #5F4A1F

monochromatic

#081417 #102B31 #1F545F #2E7D8D #3DA6BB

Accessibility & contrast

On white

8.43

#1F545F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#1F545F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F545F

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F545F	#FFFFFF	#000000	##FFFFFF
##1F545F	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5160

Deuteranopia (green-blind)

#424A5F

Tritanopia (blue-blind)

#005857

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f545f;
/* rgb */ color: rgb(31, 84, 95);
/* oklch */ color: oklch(41.6% 0.058 213.7);

Tailwind

colors: {
  custom: {
    50: '#63848c',
    500: '#1f545f',
    950: '#000000',
  },
}

SCSS

$custom: #1f545f;
$custom-light: #63848c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f545f",
  "rgb": {
    "r": 31,
    "g": 84,
    "b": 95
  },
  "hsl": {
    "h": 190.313,
    "s": 50.794,
    "l": 24.706
  },
  "oklch": {
    "l": 0.41557,
    "c": 0.05804,
    "h": 213.7
  },
  "luminance": 0.07458
}

Semantic roles & 50–950 ramp

primary

#1F545F

secondary

#945346

accent

#664EDA

background

#F6F8F8

surface

#EBEFF0

border

#C6CACB

text

#060B0C

muted

#7A7C7D

Preview Lab

Preview with #1F545F

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

Preview Lab → · Contrast checker → · Palette generator →