#1F4872#1F4872

#1F4872 is a dark, moderate cyan. Relative luminance 0.061; OKLCH L 39.4% C 0.085 H 251.3°. Best body text is #FFFFFF at 9.42:1 contrast (WCAG AA passes).

Color values

HEX	#1F4872
RGB	rgb(31, 72, 114)
HSL	hsl(210, 57%, 28%)
HSV	hsv(210, 73%, 45%)
CMYK	cmyk(72.8%, 36.8%, 0%, 55.3%)
CIE-LAB	lab(29.76, 0.92, -28.35)
CIE-LCH	lch(29.76, 28.36, 271.87°)
OKLab	oklab(39.42% -0.0272 -0.0805)
OKLCH	oklch(39.42% 0.085 251.3)
XYZ	xyz(5.9186, 6.1403, 16.7896)
Luminance	0.0614 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4872 #72491F

analogous

#1F7172 #1F4872 #1F1F72

triadic

#1F4872 #721F48 #48721F

tetradic

#1F4872 #721F71 #72491F #1F721F

square

#1F4872 #721F71 #72491F #1F721F

split-complementary

#1F4872 #721F1F #71721F

monochromatic

#070F18 #122A42 #1F4872 #2C66A2 #4085CB

Accessibility & contrast

On white

9.42

#1F4872 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#1F4872 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4872

9.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4872	#FFFFFF	#000000	##FFFFFF
##1F4872	1.00	9.42	2.23	9.42
#FFFFFF	9.42	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#354A74

Deuteranopia (green-blind)

#294371

Tritanopia (blue-blind)

#005257

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1f4872;
/* rgb */ color: rgb(31, 72, 114);
/* oklch */ color: oklch(39.4% 0.085 251.3);

Tailwind

colors: {
  custom: {
    50: '#667a9b',
    500: '#1f4872',
    950: '#000000',
  },
}

SCSS

$custom: #1f4872;
$custom-light: #667a9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4872",
  "rgb": {
    "r": 31,
    "g": 72,
    "b": 114
  },
  "hsl": {
    "h": 210.361,
    "s": 57.241,
    "l": 28.431
  },
  "oklch": {
    "l": 0.39424,
    "c": 0.08496,
    "h": 251.3
  },
  "luminance": 0.06141
}

Semantic roles & 50–950 ramp

primary

#1F4872

secondary

#A67747

accent

#9547E0

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1F4872

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

Preview Lab → · Contrast checker → · Palette generator →