#1F2C70#1F2C70

#1F2C70 is a dark, moderate blue. Relative luminance 0.033; OKLCH L 32.7% C 0.118 H 270.3°. Best body text is #FFFFFF at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#1F2C70
RGB	rgb(31, 44, 112)
HSL	hsl(230, 57%, 28%)
HSV	hsv(230, 72%, 44%)
CMYK	cmyk(72.3%, 60.7%, 0%, 56.1%)
CIE-LAB	lab(21.06, 19.63, -41.03)
CIE-LCH	lch(21.06, 45.48, 295.57°)
OKLab	oklab(32.71% 0.0006 -0.1182)
OKLCH	oklch(32.71% 0.118 270.3)
XYZ	xyz(4.3894, 3.2621, 15.7244)
Luminance	0.0326 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2C70 #70631F

analogous

#1F5470 #1F2C70 #3A1F70

triadic

#1F2C70 #701F2C #2C701F

tetradic

#1F2C70 #701F54 #70631F #1F703A

square

#1F2C70 #701F54 #70631F #1F703A

split-complementary

#1F2C70 #703A1F #54701F

monochromatic

#070918 #121940 #1F2C70 #2C3FA0 #3F56CA

Accessibility & contrast

On white

12.71

#1F2C70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1F2C70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2C70

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2C70	#FFFFFF	#000000	##FFFFFF
##1F2C70	1.00	12.71	1.65	12.71
#FFFFFF	12.71	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003672

Deuteranopia (green-blind)

#002F6F

Tritanopia (blue-blind)

#003D49

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1f2c70;
/* rgb */ color: rgb(31, 44, 112);
/* oklch */ color: oklch(32.7% 0.118 270.3);

Tailwind

colors: {
  custom: {
    50: '#66649a',
    500: '#1f2c70',
    950: '#000000',
  },
}

SCSS

$custom: #1f2c70;
$custom-light: #66649a;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2c70",
  "rgb": {
    "r": 31,
    "g": 44,
    "b": 112
  },
  "hsl": {
    "h": 230.37,
    "s": 56.643,
    "l": 28.039
  },
  "oklch": {
    "l": 0.32708,
    "c": 0.11821,
    "h": 270.3
  },
  "luminance": 0.03263
}

Semantic roles & 50–950 ramp

primary

#1F2C70

secondary

#A49547

accent

#C848E0

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #1F2C70

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

Preview Lab → · Contrast checker → · Palette generator →