#1F4873#1F4873

#1F4873 is a dark, moderate cyan. Relative luminance 0.062; OKLCH L 39.5% C 0.086 H 251.8°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#1F4873
RGB	rgb(31, 72, 115)
HSL	hsl(211, 58%, 29%)
HSV	hsv(211, 73%, 45%)
CMYK	cmyk(73%, 37.4%, 0%, 54.9%)
CIE-LAB	lab(29.82, 1.32, -28.89)
CIE-LCH	lch(29.82, 28.92, 272.61°)
OKLab	oklab(39.49% -0.0269 -0.0821)
OKLCH	oklch(39.49% 0.086 251.8)
XYZ	xyz(5.9758, 6.1632, 17.0910)
Luminance	0.0616 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4873 #734A1F

analogous

#1F7273 #1F4873 #201F73

triadic

#1F4873 #731F48 #48731F

tetradic

#1F4873 #731F72 #734A1F #1F7320

square

#1F4873 #731F72 #734A1F #1F7320

split-complementary

#1F4873 #73201F #72731F

monochromatic

#060F18 #122A43 #1F4873 #2C66A3 #4185CC

Accessibility & contrast

On white

9.41

#1F4873 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#1F4873 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4873

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4873	#FFFFFF	#000000	##FFFFFF
##1F4873	1.00	9.41	2.23	9.41
#FFFFFF	9.41	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#354B75

Deuteranopia (green-blind)

#294372

Tritanopia (blue-blind)

#005258

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1f4873;
/* rgb */ color: rgb(31, 72, 115);
/* oklch */ color: oklch(39.5% 0.086 251.8);

Tailwind

colors: {
  custom: {
    50: '#667a9b',
    500: '#1f4873',
    950: '#000000',
  },
}

SCSS

$custom: #1f4873;
$custom-light: #667a9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4873",
  "rgb": {
    "r": 31,
    "g": 72,
    "b": 115
  },
  "hsl": {
    "h": 210.714,
    "s": 57.534,
    "l": 28.627
  },
  "oklch": {
    "l": 0.39487,
    "c": 0.08637,
    "h": 251.8
  },
  "luminance": 0.06164
}

Semantic roles & 50–950 ramp

primary

#1F4873

secondary

#A77847

accent

#9647E1

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1F4873

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

Preview Lab → · Contrast checker → · Palette generator →