#1F2F7C#1F2F7C

#1F2F7C is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.4% C 0.132 H 269.2°. Best body text is #FFFFFF at 11.96:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F7C
RGB	rgb(31, 47, 124)
HSL	hsl(230, 60%, 30%)
HSV	hsv(230, 75%, 49%)
CMYK	cmyk(75%, 62.1%, 0%, 51.4%)
CIE-LAB	lab(22.93, 22.25, -45.66)
CIE-LCH	lch(22.93, 50.79, 295.98°)
OKLab	oklab(34.42% -0.0018 -0.1318)
OKLCH	oklch(34.42% 0.132 269.2)
XYZ	xyz(5.2184, 3.7790, 19.5193)
Luminance	0.0378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F7C #7C6C1F

analogous

#1F5E7C #1F2F7C #3D1F7C

triadic

#1F2F7C #7C1F2F #2F7C1F

tetradic

#1F2F7C #7C1F5E #7C6C1F #1F7C3D

square

#1F2F7C #7C1F5E #7C6C1F #1F7C3D

split-complementary

#1F2F7C #7C3D1F #5E7C1F

monochromatic

#070A1A #131C4B #1F2F7C #2B42AD #455DD0

Accessibility & contrast

On white

11.96

#1F2F7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#1F2F7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F7C

11.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F7C	#FFFFFF	#000000	##FFFFFF
##1F2F7C	1.00	11.96	1.76	11.96
#FFFFFF	11.96	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B7F

Deuteranopia (green-blind)

#00337B

Tritanopia (blue-blind)

#004250

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1f2f7c;
/* rgb */ color: rgb(31, 47, 124);
/* oklch */ color: oklch(34.4% 0.132 269.2);

Tailwind

colors: {
  custom: {
    50: '#6967a3',
    500: '#1f2f7c',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f7c;
$custom-light: #6967a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f7c",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 124
  },
  "hsl": {
    "h": 229.677,
    "s": 60,
    "l": 30.392
  },
  "oklch": {
    "l": 0.34416,
    "c": 0.13178,
    "h": 269.2
  },
  "luminance": 0.0378
}

Semantic roles & 50–950 ramp

primary

#1F2F7C

secondary

#AF9D48

accent

#C845E3

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1F2F7C

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

Preview Lab → · Contrast checker → · Palette generator →