#1F2D70#1F2D70

#1F2D70 is a dark, moderate blue. Relative luminance 0.033; OKLCH L 32.9% C 0.117 H 269.9°. Best body text is #FFFFFF at 12.59:1 contrast (WCAG AA passes).

Color values

HEX	#1F2D70
RGB	rgb(31, 45, 112)
HSL	hsl(230, 57%, 28%)
HSV	hsv(230, 72%, 44%)
CMYK	cmyk(72.3%, 59.8%, 0%, 56.1%)
CIE-LAB	lab(21.35, 18.92, -40.57)
CIE-LCH	lch(21.35, 44.76, 295.00°)
OKLab	oklab(32.92% -0.0003 -0.1168)
OKLCH	oklch(32.92% 0.117 269.9)
XYZ	xyz(4.4271, 3.3375, 15.7370)
Luminance	0.0334 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2D70 #70621F

analogous

#1F5570 #1F2D70 #3A1F70

triadic

#1F2D70 #701F2D #2D701F

tetradic

#1F2D70 #701F55 #70621F #1F703A

square

#1F2D70 #701F55 #70621F #1F703A

split-complementary

#1F2D70 #703A1F #55701F

monochromatic

#070A18 #121A40 #1F2D70 #2C40A0 #3F57CA

Accessibility & contrast

On white

12.59

#1F2D70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1F2D70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2D70

12.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2D70	#FFFFFF	#000000	##FFFFFF
##1F2D70	1.00	12.59	1.67	12.59
#FFFFFF	12.59	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003772

Deuteranopia (green-blind)

#00306F

Tritanopia (blue-blind)

#003D49

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1f2d70;
/* rgb */ color: rgb(31, 45, 112);
/* oklch */ color: oklch(32.9% 0.117 269.9);

Tailwind

colors: {
  custom: {
    50: '#66659a',
    500: '#1f2d70',
    950: '#000000',
  },
}

SCSS

$custom: #1f2d70;
$custom-light: #66659a;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2d70",
  "rgb": {
    "r": 31,
    "g": 45,
    "b": 112
  },
  "hsl": {
    "h": 229.63,
    "s": 56.643,
    "l": 28.039
  },
  "oklch": {
    "l": 0.3292,
    "c": 0.11684,
    "h": 269.9
  },
  "luminance": 0.03338
}

Semantic roles & 50–950 ramp

primary

#1F2D70

secondary

#A49447

accent

#C648E0

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #1F2D70

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

Preview Lab → · Contrast checker → · Palette generator →