#1B475D#1B475D

#1B475D is a dark, moderate cyan. Relative luminance 0.055; OKLCH L 37.8% C 0.061 H 233.4°. Best body text is #FFFFFF at 9.97:1 contrast (WCAG AA passes).

Color values

HEX	#1B475D
RGB	rgb(27, 71, 93)
HSL	hsl(200, 55%, 24%)
HSV	hsv(200, 71%, 36%)
CMYK	cmyk(71%, 23.7%, 0%, 63.5%)
CIE-LAB	lab(28.19, -7.22, -17.44)
CIE-LCH	lch(28.19, 18.88, 247.52°)
OKLab	oklab(37.78% -0.0363 -0.0489)
OKLCH	oklch(37.78% 0.061 233.4)
XYZ	xyz(4.6802, 5.5293, 11.1744)
Luminance	0.0553 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B475D #5D311B

analogous

#1B5D52 #1B475D #1B265D

triadic

#1B475D #5D1B47 #475D1B

tetradic

#1B475D #521B5D #5D311B #265D1B

square

#1B475D #521B5D #5D311B #265D1B

split-complementary

#1B475D #5D1B26 #5D521B

monochromatic

#071218 #0D232E #1B475D #296B8C #378FBC

Accessibility & contrast

On white

9.97

#1B475D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#1B475D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B475D

9.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B475D	#FFFFFF	#000000	##FFFFFF
##1B475D	1.00	9.97	2.11	9.97
#FFFFFF	9.97	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C465E

Deuteranopia (green-blind)

#33405D

Tritanopia (blue-blind)

#004D4E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1b475d;
/* rgb */ color: rgb(27, 71, 93);
/* oklch */ color: oklch(37.8% 0.061 233.4);

Tailwind

colors: {
  custom: {
    50: '#607a8b',
    500: '#1b475d',
    950: '#000000',
  },
}

SCSS

$custom: #1b475d;
$custom-light: #607a8b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b475d",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 93
  },
  "hsl": {
    "h": 200,
    "s": 55,
    "l": 23.529
  },
  "oklch": {
    "l": 0.37783,
    "c": 0.06091,
    "h": 233.4
  },
  "luminance": 0.0553
}

Semantic roles & 50–950 ramp

primary

#1B475D

secondary

#935C41

accent

#7B49DE

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05090C

muted

#797B7D

Preview Lab

Preview with #1B475D

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

Preview Lab → · Contrast checker → · Palette generator →