#1B424D#1B424D

#1B424D is a dark, muted cyan. Relative luminance 0.047; OKLCH L 35.6% C 0.048 H 219.0°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#1B424D
RGB	rgb(27, 66, 77)
HSL	hsl(193, 48%, 20%)
HSV	hsv(193, 65%, 30%)
CMYK	cmyk(64.9%, 14.3%, 0%, 69.8%)
CIE-LAB	lab(25.76, -9.94, -10.79)
CIE-LCH	lch(25.76, 14.67, 227.36°)
OKLab	oklab(35.6% -0.037 -0.03)
OKLCH	oklch(35.6% 0.048 219)
XYZ	xyz(3.7392, 4.6649, 7.7231)
Luminance	0.0466 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B424D #4D261B

analogous

#1B4D3F #1B424D #1B294D

triadic

#1B424D #4D1B42 #424D1B

tetradic

#1B424D #3F1B4D #4D261B #294D1B

square

#1B424D #3F1B4D #4D261B #294D1B

split-complementary

#1B424D #4D1B29 #4D3F1B

monochromatic

#081317 #0B1B20 #1B424D #2B697A #3B90A8

Accessibility & contrast

On white

10.86

#1B424D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#1B424D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B424D

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B424D	#FFFFFF	#000000	##FFFFFF
##1B424D	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B404E

Deuteranopia (green-blind)

#343B4D

Tritanopia (blue-blind)

#004645

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1b424d;
/* rgb */ color: rgb(27, 66, 77);
/* oklch */ color: oklch(35.6% 0.048 219.0);

Tailwind

colors: {
  custom: {
    50: '#5d767e',
    500: '#1b424d',
    950: '#000000',
  },
}

SCSS

$custom: #1b424d;
$custom-light: #5d767e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b424d",
  "rgb": {
    "r": 27,
    "g": 66,
    "b": 77
  },
  "hsl": {
    "h": 193.2,
    "s": 48.077,
    "l": 20.392
  },
  "oklch": {
    "l": 0.35602,
    "c": 0.04764,
    "h": 219
  },
  "luminance": 0.04665
}

Semantic roles & 50–950 ramp

primary

#1B424D

secondary

#834F41

accent

#6E50D8

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #1B424D

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

Preview Lab → · Contrast checker → · Palette generator →