#1F424B#1F424B

#1F424B is a dark, muted cyan. Relative luminance 0.047; OKLCH L 35.7% C 0.043 H 216.6°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#1F424B
RGB	rgb(31, 66, 75)
HSL	hsl(192, 42%, 21%)
HSV	hsv(192, 59%, 29%)
CMYK	cmyk(58.7%, 12%, 0%, 70.6%)
CIE-LAB	lab(25.85, -9.67, -9.33)
CIE-LCH	lch(25.85, 13.44, 223.96°)
OKLab	oklab(35.7% -0.0347 -0.0258)
OKLCH	oklch(35.7% 0.043 216.6)
XYZ	xyz(3.7828, 4.6954, 7.3622)
Luminance	0.0470 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F424B #4B281F

analogous

#1F4B3E #1F424B #1F2C4B

triadic

#1F424B #4B1F42 #424B1F

tetradic

#1F424B #3E1F4B #4B281F #2C4B1F

square

#1F424B #3E1F4B #4B281F #2C4B1F

split-complementary

#1F424B #4B1F2C #4B3E1F

monochromatic

#091316 #0D1C20 #1F424B #316876 #438EA2

Accessibility & contrast

On white

10.83

#1F424B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1F424B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F424B

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F424B	#FFFFFF	#000000	##FFFFFF
##1F424B	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C404C

Deuteranopia (green-blind)

#353B4B

Tritanopia (blue-blind)

#014545

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1f424b;
/* rgb */ color: rgb(31, 66, 75);
/* oklch */ color: oklch(35.7% 0.043 216.6);

Tailwind

colors: {
  custom: {
    50: '#5f767d',
    500: '#1f424b',
    950: '#000000',
  },
}

SCSS

$custom: #1f424b;
$custom-light: #5f767d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f424b",
  "rgb": {
    "r": 31,
    "g": 66,
    "b": 75
  },
  "hsl": {
    "h": 192.273,
    "s": 41.509,
    "l": 20.784
  },
  "oklch": {
    "l": 0.35696,
    "c": 0.04326,
    "h": 216.6
  },
  "luminance": 0.04696
}

Semantic roles & 50–950 ramp

primary

#1F424B

secondary

#805246

accent

#7056D1

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#050809

muted

#797B7B

Preview Lab

Preview with #1F424B

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

Preview Lab → · Contrast checker → · Palette generator →