#1F4D73#1F4D73

#1F4D73 is a dark, moderate cyan. Relative luminance 0.068; OKLCH L 40.8% C 0.081 H 246.6°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#1F4D73
RGB	rgb(31, 77, 115)
HSL	hsl(207, 58%, 29%)
HSV	hsv(207, 73%, 45%)
CMYK	cmyk(73%, 33%, 0%, 54.9%)
CIE-LAB	lab(31.43, -1.96, -26.34)
CIE-LCH	lch(31.43, 26.42, 265.74°)
OKLab	oklab(40.75% -0.0323 -0.0746)
OKLCH	oklch(40.75% 0.081 246.6)
XYZ	xyz(6.3123, 6.8362, 17.2032)
Luminance	0.0684 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4D73 #73451F

analogous

#1F736F #1F4D73 #1F2373

triadic

#1F4D73 #731F4D #4D731F

tetradic

#1F4D73 #6F1F73 #73451F #23731F

square

#1F4D73 #6F1F73 #73451F #23731F

split-complementary

#1F4D73 #731F23 #736F1F

monochromatic

#061018 #122D43 #1F4D73 #2C6DA3 #418DCC

Accessibility & contrast

On white

8.87

#1F4D73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#1F4D73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4D73

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4D73	#FFFFFF	#000000	##FFFFFF
##1F4D73	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C4E75

Deuteranopia (green-blind)

#304672

Tritanopia (blue-blind)

#00565B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1f4d73;
/* rgb */ color: rgb(31, 77, 115);
/* oklch */ color: oklch(40.8% 0.081 246.6);

Tailwind

colors: {
  custom: {
    50: '#667e9b',
    500: '#1f4d73',
    950: '#000000',
  },
}

SCSS

$custom: #1f4d73;
$custom-light: #667e9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4d73",
  "rgb": {
    "r": 31,
    "g": 77,
    "b": 115
  },
  "hsl": {
    "h": 207.143,
    "s": 57.534,
    "l": 28.627
  },
  "oklch": {
    "l": 0.40752,
    "c": 0.08129,
    "h": 246.6
  },
  "luminance": 0.06837
}

Semantic roles & 50–950 ramp

primary

#1F4D73

secondary

#A77247

accent

#8D47E1

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1F4D73

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

Preview Lab → · Contrast checker → · Palette generator →