#1F2F7D#1F2F7D

#1F2F7D is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.5% C 0.133 H 269.2°. Best body text is #FFFFFF at 11.93:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F7D
RGB	rgb(31, 47, 125)
HSL	hsl(230, 60%, 31%)
HSV	hsv(230, 75%, 49%)
CMYK	cmyk(75.2%, 62.4%, 0%, 51%)
CIE-LAB	lab(23.01, 22.64, -46.15)
CIE-LCH	lch(23.01, 51.40, 296.13°)
OKLab	oklab(34.51% -0.0018 -0.1332)
OKLCH	oklch(34.51% 0.133 269.2)
XYZ	xyz(5.2820, 3.8045, 19.8540)
Luminance	0.0381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F7D #7D6D1F

analogous

#1F5E7D #1F2F7D #3E1F7D

triadic

#1F2F7D #7D1F2F #2F7D1F

tetradic

#1F2F7D #7D1F5E #7D6D1F #1F7D3E

square

#1F2F7D #7D1F5E #7D6D1F #1F7D3E

split-complementary

#1F2F7D #7D3E1F #5E7D1F

monochromatic

#070A1B #131D4C #1F2F7D #2B41AE #455DD1

Accessibility & contrast

On white

11.93

#1F2F7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#1F2F7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F7D

11.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F7D	#FFFFFF	#000000	##FFFFFF
##1F2F7D	1.00	11.93	1.76	11.93
#FFFFFF	11.93	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B80

Deuteranopia (green-blind)

#00337B

Tritanopia (blue-blind)

#004351

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1f2f7d;
/* rgb */ color: rgb(31, 47, 125);
/* oklch */ color: oklch(34.5% 0.133 269.2);

Tailwind

colors: {
  custom: {
    50: '#6967a3',
    500: '#1f2f7d',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f7d;
$custom-light: #6967a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f7d",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 125
  },
  "hsl": {
    "h": 229.787,
    "s": 60.256,
    "l": 30.588
  },
  "oklch": {
    "l": 0.34508,
    "c": 0.13322,
    "h": 269.2
  },
  "luminance": 0.03805
}

Semantic roles & 50–950 ramp

primary

#1F2F7D

secondary

#B09E48

accent

#C844E3

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1F2F7D

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

Preview Lab → · Contrast checker → · Palette generator →