#1F2D8F#1F2D8F

#1F2D8F is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.9% C 0.161 H 269.6°. Best body text is #FFFFFF at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#1F2D8F
RGB	rgb(31, 45, 143)
HSL	hsl(233, 64%, 34%)
HSV	hsv(233, 78%, 56%)
CMYK	cmyk(78.3%, 68.5%, 0%, 43.9%)
CIE-LAB	lab(24.16, 30.93, -55.53)
CIE-LCH	lch(24.16, 63.57, 299.12°)
OKLab	oklab(35.87% -0.0012 -0.1607)
OKLCH	oklch(35.87% 0.161 269.6)
XYZ	xyz(6.4597, 4.1505, 26.4420)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2D8F #8F811F

analogous

#1F658F #1F2D8F #491F8F

triadic

#1F2D8F #8F1F2D #2D8F1F

tetradic

#1F2D8F #8F1F65 #8F811F #1F8F49

square

#1F2D8F #8F1F65 #8F811F #1F8F49

split-complementary

#1F2D8F #8F491F #658F1F

monochromatic

#090D2A #141D5D #1F2D8F #2A3DC1 #4F61D9

Accessibility & contrast

On white

11.47

#1F2D8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#1F2D8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2D8F

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2D8F	#FFFFFF	#000000	##FFFFFF
##1F2D8F	1.00	11.47	1.83	11.47
#FFFFFF	11.47	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F92

Deuteranopia (green-blind)

#00348D

Tritanopia (blue-blind)

#00475A

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1f2d8f;
/* rgb */ color: rgb(31, 45, 143);
/* oklch */ color: oklch(35.9% 0.161 269.6);

Tailwind

colors: {
  custom: {
    50: '#6e66b1',
    500: '#1f2d8f',
    950: '#000000',
  },
}

SCSS

$custom: #1f2d8f;
$custom-light: #6e66b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2d8f",
  "rgb": {
    "r": 31,
    "g": 45,
    "b": 143
  },
  "hsl": {
    "h": 232.5,
    "s": 64.368,
    "l": 34.118
  },
  "oklch": {
    "l": 0.35866,
    "c": 0.16072,
    "h": 269.6
  },
  "luminance": 0.04151
}

Semantic roles & 50–950 ramp

primary

#1F2D8F

secondary

#BCAE4E

accent

#D240E7

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1F2D8F

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

Preview Lab → · Contrast checker → · Palette generator →