#1F3545#1F3545

#1F3545 is a dark, muted cyan. Relative luminance 0.033; OKLCH L 31.8% C 0.040 H 241.2°. Best body text is #FFFFFF at 12.70:1 contrast (WCAG AA passes).

Color values

HEX	#1F3545
RGB	rgb(31, 53, 69)
HSL	hsl(205, 38%, 20%)
HSV	hsv(205, 55%, 27%)
CMYK	cmyk(55.1%, 23.2%, 0%, 72.9%)
CIE-LAB	lab(21.08, -3.39, -12.62)
CIE-LCH	lch(21.08, 13.06, 254.98°)
OKLab	oklab(31.82% -0.0193 -0.0351)
OKLCH	oklch(31.82% 0.04 241.2)
XYZ	xyz(2.9120, 3.2670, 6.1062)
Luminance	0.0327 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3545 #452F1F

analogous

#1F4542 #1F3545 #1F2245

triadic

#1F3545 #451F35 #35451F

tetradic

#1F3545 #421F45 #452F1F #22451F

square

#1F3545 #421F45 #452F1F #22451F

split-complementary

#1F3545 #451F22 #45421F

monochromatic

#091015 #0C151B #1F3545 #32556F #457699

Accessibility & contrast

On white

12.70

#1F3545 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1F3545 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3545

12.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3545	#FFFFFF	#000000	##FFFFFF
##1F3545	1.00	12.70	1.65	12.70
#FFFFFF	12.70	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3546

Deuteranopia (green-blind)

#293145

Tritanopia (blue-blind)

#0C393A

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1f3545;
/* rgb */ color: rgb(31, 53, 69);
/* oklch */ color: oklch(31.8% 0.040 241.2);

Tailwind

colors: {
  custom: {
    50: '#5d6c78',
    500: '#1f3545',
    950: '#000000',
  },
}

SCSS

$custom: #1f3545;
$custom-light: #5d6c78;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3545",
  "rgb": {
    "r": 31,
    "g": 53,
    "b": 69
  },
  "hsl": {
    "h": 205.263,
    "s": 38,
    "l": 19.608
  },
  "oklch": {
    "l": 0.31818,
    "c": 0.04007,
    "h": 241.2
  },
  "luminance": 0.03267
}

Semantic roles & 50–950 ramp

primary

#1F3545

secondary

#795C46

accent

#8B5ACE

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#040609

muted

#797A7B

Preview Lab

Preview with #1F3545

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

Preview Lab → · Contrast checker → · Palette generator →