#1F2F7A#1F2F7A

#1F2F7A is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.2% C 0.129 H 269.2°. Best body text is #FFFFFF at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F7A
RGB	rgb(31, 47, 122)
HSL	hsl(229, 59%, 30%)
HSV	hsv(229, 75%, 48%)
CMYK	cmyk(74.6%, 61.5%, 0%, 52.2%)
CIE-LAB	lab(22.75, 21.46, -44.67)
CIE-LCH	lch(22.75, 49.56, 295.66°)
OKLab	oklab(34.23% -0.0018 -0.1289)
OKLCH	oklch(34.23% 0.129 269.2)
XYZ	xyz(5.0932, 3.7290, 18.8599)
Luminance	0.0373 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F7A #7A6A1F

analogous

#1F5C7A #1F2F7A #3D1F7A

triadic

#1F2F7A #7A1F2F #2F7A1F

tetradic

#1F2F7A #7A1F5C #7A6A1F #1F7A3D

square

#1F2F7A #7A1F5C #7A6A1F #1F7A3D

split-complementary

#1F2F7A #7A3D1F #5C7A1F

monochromatic

#060918 #131C49 #1F2F7A #2B42AB #445CCF

Accessibility & contrast

On white

12.03

#1F2F7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1F2F7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F7A

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F7A	#FFFFFF	#000000	##FFFFFF
##1F2F7A	1.00	12.03	1.75	12.03
#FFFFFF	12.03	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B7D

Deuteranopia (green-blind)

#003279

Tritanopia (blue-blind)

#00424F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1f2f7a;
/* rgb */ color: rgb(31, 47, 122);
/* oklch */ color: oklch(34.2% 0.129 269.2);

Tailwind

colors: {
  custom: {
    50: '#6967a1',
    500: '#1f2f7a',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f7a;
$custom-light: #6967a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f7a",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 122
  },
  "hsl": {
    "h": 229.451,
    "s": 59.477,
    "l": 30
  },
  "oklch": {
    "l": 0.34234,
    "c": 0.12888,
    "h": 269.2
  },
  "luminance": 0.03729
}

Semantic roles & 50–950 ramp

primary

#1F2F7A

secondary

#AD9B47

accent

#C745E3

background

#F6F6FA

surface

#ECEBF3

border

#C7C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1F2F7A

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

Preview Lab → · Contrast checker → · Palette generator →