#1F1A8A#1F1A8A

#1F1A8A is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.4% C 0.174 H 272.8°. Best body text is #FFFFFF at 13.35:1 contrast (WCAG AA passes).

Color values

HEX	#1F1A8A
RGB	rgb(31, 26, 138)
HSL	hsl(243, 68%, 32%)
HSV	hsv(243, 81%, 54%)
CMYK	cmyk(77.5%, 81.2%, 0%, 45.9%)
CIE-LAB	lab(19.49, 40.65, -60.12)
CIE-LCH	lch(19.49, 72.57, 304.06°)
OKLab	oklab(32.37% 0.0085 -0.174)
OKLCH	oklch(32.37% 0.174 272.8)
XYZ	xyz(5.5204, 2.8645, 24.3018)
Luminance	0.0286 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1A8A #858A1A

analogous

#1A4D8A #1F1A8A #571A8A

triadic

#1F1A8A #8A1F1A #1A8A1F

tetradic

#1F1A8A #8A1A4D #858A1A #1A8A57

square

#1F1A8A #8A1A4D #858A1A #1A8A57

split-complementary

#1F1A8A #8A571A #4D8A1A

monochromatic

#080723 #131057 #1F1A8A #2B24BD #4A43DC

Accessibility & contrast

On white

13.35

#1F1A8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1F1A8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1A8A

13.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1A8A	#FFFFFF	#000000	##FFFFFF
##1F1A8A	1.00	13.35	1.57	13.35
#FFFFFF	13.35	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348D

Deuteranopia (green-blind)

#002A88

Tritanopia (blue-blind)

#003D52

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1f1a8a;
/* rgb */ color: rgb(31, 26, 138);
/* oklch */ color: oklch(32.4% 0.174 272.8);

Tailwind

colors: {
  custom: {
    50: '#6f59ad',
    500: '#1f1a8a',
    950: '#000000',
  },
}

SCSS

$custom: #1f1a8a;
$custom-light: #6f59ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1a8a",
  "rgb": {
    "r": 31,
    "g": 26,
    "b": 138
  },
  "hsl": {
    "h": 242.679,
    "s": 68.293,
    "l": 32.157
  },
  "oklch": {
    "l": 0.3237,
    "c": 0.17419,
    "h": 272.8
  },
  "luminance": 0.02865
}

Semantic roles & 50–950 ramp

primary

#1F1A8A

secondary

#B7BD43

accent

#EB3DE3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #1F1A8A

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

Preview Lab → · Contrast checker → · Palette generator →