#1F2DA1#1F2DA1

#1F2DA1 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.7% C 0.184 H 269.1°. Best body text is #FFFFFF at 10.78:1 contrast (WCAG AA passes).

Color values

HEX	#1F2DA1
RGB	rgb(31, 45, 161)
HSL	hsl(234, 68%, 38%)
HSV	hsv(234, 81%, 63%)
CMYK	cmyk(80.7%, 72%, 0%, 36.9%)
CIE-LAB	lab(25.98, 37.56, -63.58)
CIE-LCH	lch(25.98, 73.85, 300.58°)
OKLab	oklab(37.73% -0.003 -0.1842)
OKLCH	oklch(37.73% 0.184 269.1)
XYZ	xyz(7.9343, 4.7404, 34.2081)
Luminance	0.0474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2DA1 #A1931F

analogous

#1F6EA1 #1F2DA1 #521FA1

triadic

#1F2DA1 #A11F2D #2DA11F

tetradic

#1F2DA1 #A11F6E #A1931F #1FA152

square

#1F2DA1 #A11F6E #A1931F #1FA152

split-complementary

#1F2DA1 #A1521F #6EA11F

monochromatic

#0B103A #151F6E #1F2DA1 #293BD4 #5B69DF

Accessibility & contrast

On white

10.78

#1F2DA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1F2DA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2DA1

10.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2DA1	#FFFFFF	#000000	##FFFFFF
##1F2DA1	1.00	10.78	1.95	10.78
#FFFFFF	10.78	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A4

Deuteranopia (green-blind)

#00379F

Tritanopia (blue-blind)

#004E64

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1f2da1;
/* rgb */ color: rgb(31, 45, 161);
/* oklch */ color: oklch(37.7% 0.184 269.1);

Tailwind

colors: {
  custom: {
    50: '#7366be',
    500: '#1f2da1',
    950: '#000000',
  },
}

SCSS

$custom: #1f2da1;
$custom-light: #7366be;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2da1",
  "rgb": {
    "r": 31,
    "g": 45,
    "b": 161
  },
  "hsl": {
    "h": 233.538,
    "s": 67.708,
    "l": 37.647
  },
  "oklch": {
    "l": 0.37731,
    "c": 0.18421,
    "h": 269.1
  },
  "luminance": 0.04741
}

Semantic roles & 50–950 ramp

primary

#1F2DA1

secondary

#C4B858

accent

#D83DEB

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #1F2DA1

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

Preview Lab → · Contrast checker → · Palette generator →