#1F2F69#1F2F69

#1F2F69 is a dark, moderate blue. Relative luminance 0.033; OKLCH L 32.8% C 0.103 H 268.5°. Best body text is #FFFFFF at 12.58:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F69
RGB	rgb(31, 47, 105)
HSL	hsl(227, 54%, 27%)
HSV	hsv(227, 70%, 41%)
CMYK	cmyk(70.5%, 55.2%, 0%, 58.8%)
CIE-LAB	lab(21.37, 14.70, -36.00)
CIE-LCH	lch(21.37, 38.89, 292.22°)
OKLab	oklab(32.76% -0.0027 -0.1034)
OKLCH	oklch(32.76% 0.103 268.5)
XYZ	xyz(4.1305, 3.3439, 13.7896)
Luminance	0.0334 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F69 #69591F

analogous

#1F5469 #1F2F69 #341F69

triadic

#1F2F69 #691F2F #2F691F

tetradic

#1F2F69 #691F54 #69591F #1F6934

square

#1F2F69 #691F54 #69591F #1F6934

split-complementary

#1F2F69 #69341F #54691F

monochromatic

#070B18 #111A3A #1F2F69 #2D4498 #3D5AC6

Accessibility & contrast

On white

12.58

#1F2F69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1F2F69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F69

12.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F69	#FFFFFF	#000000	##FFFFFF
##1F2F69	1.00	12.58	1.67	12.58
#FFFFFF	12.58	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A376B

Deuteranopia (green-blind)

#003068

Tritanopia (blue-blind)

#003D47

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1f2f69;
/* rgb */ color: rgb(31, 47, 105);
/* oklch */ color: oklch(32.8% 0.103 268.5);

Tailwind

colors: {
  custom: {
    50: '#646794',
    500: '#1f2f69',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f69;
$custom-light: #646794;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f69",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 105
  },
  "hsl": {
    "h": 227.027,
    "s": 54.412,
    "l": 26.667
  },
  "oklch": {
    "l": 0.32761,
    "c": 0.10342,
    "h": 268.5
  },
  "luminance": 0.03344
}

Semantic roles & 50–950 ramp

primary

#1F2F69

secondary

#9D8B47

accent

#BE4ADE

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1F2F69

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

Preview Lab → · Contrast checker → · Palette generator →