#1F2D7C#1F2D7C

#1F2D7C is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.0% C 0.134 H 269.9°. Best body text is #FFFFFF at 12.18:1 contrast (WCAG AA passes).

Color values

HEX	#1F2D7C
RGB	rgb(31, 45, 124)
HSL	hsl(231, 60%, 30%)
HSV	hsv(231, 75%, 49%)
CMYK	cmyk(75%, 63.7%, 0%, 51.4%)
CIE-LAB	lab(22.38, 23.64, -46.54)
CIE-LCH	lch(22.38, 52.20, 296.93°)
OKLab	oklab(34.01% -0.0002 -0.1344)
OKLCH	oklch(34.01% 0.134 269.9)
XYZ	xyz(5.1403, 3.6228, 19.4932)
Luminance	0.0362 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2D7C #7C6E1F

analogous

#1F5B7C #1F2D7C #401F7C

triadic

#1F2D7C #7C1F2D #2D7C1F

tetradic

#1F2D7C #7C1F5B #7C6E1F #1F7C40

square

#1F2D7C #7C1F5B #7C6E1F #1F7C40

split-complementary

#1F2D7C #7C401F #5B7C1F

monochromatic

#07091A #131B4B #1F2D7C #2B3FAD #455AD0

Accessibility & contrast

On white

12.18

#1F2D7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1F2D7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2D7C

12.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2D7C	#FFFFFF	#000000	##FFFFFF
##1F2D7C	1.00	12.18	1.72	12.18
#FFFFFF	12.18	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A7F

Deuteranopia (green-blind)

#00317A

Tritanopia (blue-blind)

#004150

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1f2d7c;
/* rgb */ color: rgb(31, 45, 124);
/* oklch */ color: oklch(34.0% 0.134 269.9);

Tailwind

colors: {
  custom: {
    50: '#6965a3',
    500: '#1f2d7c',
    950: '#000000',
  },
}

SCSS

$custom: #1f2d7c;
$custom-light: #6965a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2d7c",
  "rgb": {
    "r": 31,
    "g": 45,
    "b": 124
  },
  "hsl": {
    "h": 230.968,
    "s": 60,
    "l": 30.392
  },
  "oklch": {
    "l": 0.34013,
    "c": 0.1344,
    "h": 269.9
  },
  "luminance": 0.03623
}

Semantic roles & 50–950 ramp

primary

#1F2D7C

secondary

#AFA048

accent

#CB45E3

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1F2D7C

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

Preview Lab → · Contrast checker → · Palette generator →