#1F2AA1#1F2AA1

#1F2AA1 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.3% C 0.187 H 269.4°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#1F2AA1
RGB	rgb(31, 42, 161)
HSL	hsl(235, 68%, 38%)
HSV	hsv(235, 81%, 63%)
CMYK	cmyk(80.7%, 73.9%, 0%, 36.9%)
CIE-LAB	lab(25.32, 39.40, -64.67)
CIE-LCH	lch(25.32, 75.73, 301.35°)
OKLab	oklab(37.26% -0.0018 -0.1874)
OKLCH	oklch(37.26% 0.187 269.4)
XYZ	xyz(7.8239, 4.5195, 34.1713)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2AA1 #A1961F

analogous

#1F6BA1 #1F2AA1 #551FA1

triadic

#1F2AA1 #A11F2A #2AA11F

tetradic

#1F2AA1 #A11F6B #A1961F #1FA155

square

#1F2AA1 #A11F6B #A1961F #1FA155

split-complementary

#1F2AA1 #A1551F #6BA11F

monochromatic

#0B0F3A #151D6E #1F2AA1 #2937D4 #5B66DF

Accessibility & contrast

On white

11.03

#1F2AA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1F2AA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2AA1

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2AA1	#FFFFFF	#000000	##FFFFFF
##1F2AA1	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A5

Deuteranopia (green-blind)

#00369F

Tritanopia (blue-blind)

#004C63

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1f2aa1;
/* rgb */ color: rgb(31, 42, 161);
/* oklch */ color: oklch(37.3% 0.187 269.4);

Tailwind

colors: {
  custom: {
    50: '#7364be',
    500: '#1f2aa1',
    950: '#000000',
  },
}

SCSS

$custom: #1f2aa1;
$custom-light: #7364be;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2aa1",
  "rgb": {
    "r": 31,
    "g": 42,
    "b": 161
  },
  "hsl": {
    "h": 234.923,
    "s": 67.708,
    "l": 37.647
  },
  "oklch": {
    "l": 0.37256,
    "c": 0.18737,
    "h": 269.4
  },
  "luminance": 0.0452
}

Semantic roles & 50–950 ramp

primary

#1F2AA1

secondary

#C4BA58

accent

#DC3DEB

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #1F2AA1

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

Preview Lab → · Contrast checker → · Palette generator →