#1F4D72#1F4D72

#1F4D72 is a dark, moderate cyan. Relative luminance 0.068; OKLCH L 40.7% C 0.080 H 245.9°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#1F4D72
RGB	rgb(31, 77, 114)
HSL	hsl(207, 57%, 28%)
HSV	hsv(207, 73%, 45%)
CMYK	cmyk(72.8%, 32.5%, 0%, 55.3%)
CIE-LAB	lab(31.38, -2.35, -25.80)
CIE-LCH	lch(31.38, 25.91, 264.80°)
OKLab	oklab(40.69% -0.0327 -0.073)
OKLCH	oklch(40.69% 0.08 245.9)
XYZ	xyz(6.2551, 6.8133, 16.9018)
Luminance	0.0681 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4D72 #72441F

analogous

#1F726D #1F4D72 #1F2372

triadic

#1F4D72 #721F4D #4D721F

tetradic

#1F4D72 #6D1F72 #72441F #23721F

square

#1F4D72 #6D1F72 #72441F #23721F

split-complementary

#1F4D72 #721F23 #726D1F

monochromatic

#071018 #122C42 #1F4D72 #2C6DA2 #408DCB

Accessibility & contrast

On white

8.89

#1F4D72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#1F4D72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4D72

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4D72	#FFFFFF	#000000	##FFFFFF
##1F4D72	1.00	8.89	2.36	8.89
#FFFFFF	8.89	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C4E74

Deuteranopia (green-blind)

#314671

Tritanopia (blue-blind)

#00565A

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1f4d72;
/* rgb */ color: rgb(31, 77, 114);
/* oklch */ color: oklch(40.7% 0.080 245.9);

Tailwind

colors: {
  custom: {
    50: '#667e9a',
    500: '#1f4d72',
    950: '#000000',
  },
}

SCSS

$custom: #1f4d72;
$custom-light: #667e9a;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4d72",
  "rgb": {
    "r": 31,
    "g": 77,
    "b": 114
  },
  "hsl": {
    "h": 206.747,
    "s": 57.241,
    "l": 28.431
  },
  "oklch": {
    "l": 0.40693,
    "c": 0.07997,
    "h": 245.9
  },
  "luminance": 0.06814
}

Semantic roles & 50–950 ramp

primary

#1F4D72

secondary

#A67147

accent

#8C47E0

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1F4D72

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

Preview Lab → · Contrast checker → · Palette generator →