#1F4E66#1F4E66

#1F4E66 is a dark, moderate cyan. Relative luminance 0.067; OKLCH L 40.3% C 0.065 H 233.9°. Best body text is #FFFFFF at 8.98:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E66
RGB	rgb(31, 78, 102)
HSL	hsl(200, 53%, 26%)
HSV	hsv(200, 70%, 40%)
CMYK	cmyk(69.6%, 23.5%, 0%, 60%)
CIE-LAB	lab(31.11, -7.51, -18.65)
CIE-LCH	lch(31.11, 20.11, 248.08°)
OKLab	oklab(40.28% -0.0382 -0.0523)
OKLCH	oklch(40.28% 0.065 233.9)
XYZ	xyz(5.6868, 6.6988, 13.5611)
Luminance	0.0670 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E66 #66371F

analogous

#1F665A #1F4E66 #1F2A66

triadic

#1F4E66 #661F4E #4E661F

tetradic

#1F4E66 #5A1F66 #66371F #2A661F

square

#1F4E66 #5A1F66 #66371F #2A661F

split-complementary

#1F4E66 #661F2A #665A1F

monochromatic

#071217 #112A37 #1F4E66 #2D7295 #3C96C4

Accessibility & contrast

On white

8.98

#1F4E66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#1F4E66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E66

8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E66	#FFFFFF	#000000	##FFFFFF
##1F4E66	1.00	8.98	2.34	8.98
#FFFFFF	8.98	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#424D67

Deuteranopia (green-blind)

#394666

Tritanopia (blue-blind)

#005456

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1f4e66;
/* rgb */ color: rgb(31, 78, 102);
/* oklch */ color: oklch(40.3% 0.065 233.9);

Tailwind

colors: {
  custom: {
    50: '#647f91',
    500: '#1f4e66',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e66;
$custom-light: #647f91;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e66",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 102
  },
  "hsl": {
    "h": 200.282,
    "s": 53.383,
    "l": 26.078
  },
  "oklch": {
    "l": 0.40285,
    "c": 0.06475,
    "h": 233.9
  },
  "luminance": 0.06699
}

Semantic roles & 50–950 ramp

primary

#1F4E66

secondary

#9A6346

accent

#7C4BDD

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#060A0D

muted

#7A7C7D

Preview Lab

Preview with #1F4E66

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

Preview Lab → · Contrast checker → · Palette generator →