#1B475F#1B475F

#1B475F is a dark, moderate cyan. Relative luminance 0.056; OKLCH L 37.9% C 0.063 H 235.8°. Best body text is #FFFFFF at 9.94:1 contrast (WCAG AA passes).

Color values

HEX	#1B475F
RGB	rgb(27, 71, 95)
HSL	hsl(201, 56%, 24%)
HSV	hsv(201, 72%, 37%)
CMYK	cmyk(71.6%, 25.3%, 0%, 62.7%)
CIE-LAB	lab(28.29, -6.47, -18.58)
CIE-LCH	lch(28.29, 19.67, 250.81°)
OKLab	oklab(37.89% -0.0355 -0.0522)
OKLCH	oklch(37.89% 0.063 235.8)
XYZ	xyz(4.7700, 5.5652, 11.6471)
Luminance	0.0557 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B475F #5F331B

analogous

#1B5F55 #1B475F #1B255F

triadic

#1B475F #5F1B47 #475F1B

tetradic

#1B475F #551B5F #5F331B #255F1B

square

#1B475F #551B5F #5F331B #255F1B

split-complementary

#1B475F #5F1B25 #5F551B

monochromatic

#071218 #0D232F #1B475F #296B8F #368EBE

Accessibility & contrast

On white

9.94

#1B475F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#1B475F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B475F

9.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B475F	#FFFFFF	#000000	##FFFFFF
##1B475F	1.00	9.94	2.11	9.94
#FFFFFF	9.94	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C4760

Deuteranopia (green-blind)

#32405F

Tritanopia (blue-blind)

#004D4F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1b475f;
/* rgb */ color: rgb(27, 71, 95);
/* oklch */ color: oklch(37.9% 0.063 235.8);

Tailwind

colors: {
  custom: {
    50: '#607a8c',
    500: '#1b475f',
    950: '#000000',
  },
}

SCSS

$custom: #1b475f;
$custom-light: #607a8c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b475f",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 95
  },
  "hsl": {
    "h": 201.176,
    "s": 55.738,
    "l": 23.922
  },
  "oklch": {
    "l": 0.3789,
    "c": 0.06312,
    "h": 235.8
  },
  "luminance": 0.05566
}

Semantic roles & 50–950 ramp

primary

#1B475F

secondary

#955F41

accent

#7E49DF

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05090C

muted

#797B7D

Preview Lab

Preview with #1B475F

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

Preview Lab → · Contrast checker → · Palette generator →