#1B424A#1B424A

#1B424A is a dark, muted cyan. Relative luminance 0.046; OKLCH L 35.5% C 0.046 H 213.0°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#1B424A
RGB	rgb(27, 66, 74)
HSL	hsl(190, 47%, 20%)
HSV	hsv(190, 64%, 29%)
CMYK	cmyk(63.5%, 10.8%, 0%, 71%)
CIE-LAB	lab(25.63, -10.99, -9.01)
CIE-LCH	lch(25.63, 14.21, 219.36°)
OKLab	oklab(35.46% -0.0384 -0.025)
OKLCH	oklch(35.46% 0.046 213)
XYZ	xyz(3.6357, 4.6235, 7.1781)
Luminance	0.0462 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B424A #4A231B

analogous

#1B4A3B #1B424A #1B2A4A

triadic

#1B424A #4A1B42 #424A1B

tetradic

#1B424A #3B1B4A #4A231B #2A4A1B

square

#1B424A #3B1B4A #4A231B #2A4A1B

split-complementary

#1B424A #4A1B2A #4A3B1B

monochromatic

#081416 #0B1A1D #1B424A #2B6A77 #3C92A4

Accessibility & contrast

On white

10.91

#1B424A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#1B424A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B424A

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B424A	#FFFFFF	#000000	##FFFFFF
##1B424A	1.00	10.91	1.92	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C404A

Deuteranopia (green-blind)

#353A4A

Tritanopia (blue-blind)

#004544

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1b424a;
/* rgb */ color: rgb(27, 66, 74);
/* oklch */ color: oklch(35.5% 0.046 213.0);

Tailwind

colors: {
  custom: {
    50: '#5d767c',
    500: '#1b424a',
    950: '#000000',
  },
}

SCSS

$custom: #1b424a;
$custom-light: #5d767c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b424a",
  "rgb": {
    "r": 27,
    "g": 66,
    "b": 74
  },
  "hsl": {
    "h": 190.213,
    "s": 46.535,
    "l": 19.804
  },
  "oklch": {
    "l": 0.35462,
    "c": 0.04582,
    "h": 213
  },
  "luminance": 0.04624
}

Semantic roles & 50–950 ramp

primary

#1B424A

secondary

#804C41

accent

#6852D6

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #1B424A

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

Preview Lab → · Contrast checker → · Palette generator →