#1F2AA0#1F2AA0

#1F2AA0 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.1% C 0.186 H 269.5°. Best body text is #FFFFFF at 11.07:1 contrast (WCAG AA passes).

Color values

HEX	#1F2AA0
RGB	rgb(31, 42, 160)
HSL	hsl(235, 68%, 37%)
HSV	hsv(235, 81%, 63%)
CMYK	cmyk(80.6%, 73.8%, 0%, 37.3%)
CIE-LAB	lab(25.21, 39.05, -64.24)
CIE-LCH	lch(25.21, 75.18, 301.29°)
OKLab	oklab(37.15% -0.0017 -0.1861)
OKLCH	oklch(37.15% 0.186 269.5)
XYZ	xyz(7.7360, 4.4844, 33.7087)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2AA0 #A0951F

analogous

#1F6AA0 #1F2AA0 #551FA0

triadic

#1F2AA0 #A01F2A #2AA01F

tetradic

#1F2AA0 #A01F6A #A0951F #1FA055

square

#1F2AA0 #A01F6A #A0951F #1FA055

split-complementary

#1F2AA0 #A0551F #6AA01F

monochromatic

#0B0F39 #151D6D #1F2AA0 #2937D3 #5A66DF

Accessibility & contrast

On white

11.07

#1F2AA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1F2AA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2AA0

11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2AA0	#FFFFFF	#000000	##FFFFFF
##1F2AA0	1.00	11.07	1.90	11.07
#FFFFFF	11.07	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A3

Deuteranopia (green-blind)

#00359E

Tritanopia (blue-blind)

#004C62

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1f2aa0;
/* rgb */ color: rgb(31, 42, 160);
/* oklch */ color: oklch(37.1% 0.186 269.5);

Tailwind

colors: {
  custom: {
    50: '#7364bd',
    500: '#1f2aa0',
    950: '#000000',
  },
}

SCSS

$custom: #1f2aa0;
$custom-light: #7364bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2aa0",
  "rgb": {
    "r": 31,
    "g": 42,
    "b": 160
  },
  "hsl": {
    "h": 234.884,
    "s": 67.539,
    "l": 37.451
  },
  "oklch": {
    "l": 0.37148,
    "c": 0.18611,
    "h": 269.5
  },
  "luminance": 0.04485
}

Semantic roles & 50–950 ramp

primary

#1F2AA0

secondary

#C3BA58

accent

#DC3DEA

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #1F2AA0

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

Preview Lab → · Contrast checker → · Palette generator →