#1F4E5A#1F4E5A

#1F4E5A is a dark, muted cyan. Relative luminance 0.065; OKLCH L 39.7% C 0.054 H 217.2°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E5A
RGB	rgb(31, 78, 90)
HSL	hsl(192, 49%, 24%)
HSV	hsv(192, 66%, 35%)
CMYK	cmyk(65.6%, 13.3%, 0%, 64.7%)
CIE-LAB	lab(30.59, -11.80, -11.83)
CIE-LCH	lch(30.59, 16.71, 225.07°)
OKLab	oklab(39.69% -0.0433 -0.0329)
OKLCH	oklch(39.69% 0.054 217.2)
XYZ	xyz(5.1342, 6.4778, 10.6506)
Luminance	0.0648 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E5A #5A2B1F

analogous

#1F5A48 #1F4E5A #1F305A

triadic

#1F4E5A #5A1F4E #4E5A1F

tetradic

#1F4E5A #481F5A #5A2B1F #305A1F

square

#1F4E5A #481F5A #5A2B1F #305A1F

split-complementary

#1F4E5A #5A1F30 #5A481F

monochromatic

#081417 #0F272C #1F4E5A #2F7588 #3E9DB5

Accessibility & contrast

On white

9.15

#1F4E5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#1F4E5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E5A

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E5A	#FFFFFF	#000000	##FFFFFF
##1F4E5A	1.00	9.15	2.30	9.15
#FFFFFF	9.15	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464C5B

Deuteranopia (green-blind)

#3D455A

Tritanopia (blue-blind)

#005252

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1f4e5a;
/* rgb */ color: rgb(31, 78, 90);
/* oklch */ color: oklch(39.7% 0.054 217.2);

Tailwind

colors: {
  custom: {
    50: '#627f88',
    500: '#1f4e5a',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e5a;
$custom-light: #627f88;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e5a",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 90
  },
  "hsl": {
    "h": 192.203,
    "s": 48.76,
    "l": 23.725
  },
  "oklch": {
    "l": 0.39693,
    "c": 0.05433,
    "h": 217.2
  },
  "luminance": 0.06478
}

Semantic roles & 50–950 ramp

primary

#1F4E5A

secondary

#8F5546

accent

#6B4FD8

background

#F6F7F8

surface

#EBEEEF

border

#C6C9CA

text

#050A0B

muted

#7A7C7C

Preview Lab

Preview with #1F4E5A

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

Preview Lab → · Contrast checker → · Palette generator →