#1F2687#1F2687

#1F2687 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.8% C 0.158 H 271.3°. Best body text is #FFFFFF at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#1F2687
RGB	rgb(31, 38, 135)
HSL	hsl(236, 63%, 33%)
HSV	hsv(236, 77%, 53%)
CMYK	cmyk(77%, 71.9%, 0%, 47.1%)
CIE-LAB	lab(21.68, 32.51, -54.64)
CIE-LCH	lch(21.68, 63.58, 300.75°)
OKLab	oklab(33.82% 0.0035 -0.1581)
OKLCH	oklch(33.82% 0.158 271.3)
XYZ	xyz(5.6299, 3.4262, 23.2816)
Luminance	0.0343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2687 #87801F

analogous

#1F5A87 #1F2687 #4C1F87

triadic

#1F2687 #871F26 #26871F

tetradic

#1F2687 #871F5A #87801F #1F874C

square

#1F2687 #871F5A #87801F #1F874C

split-complementary

#1F2687 #874C1F #5A871F

monochromatic

#080A23 #141855 #1F2687 #2A34B9 #4B54D6

Accessibility & contrast

On white

12.46

#1F2687 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1F2687 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2687

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2687	#FFFFFF	#000000	##FFFFFF
##1F2687	1.00	12.46	1.69	12.46
#FFFFFF	12.46	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398A

Deuteranopia (green-blind)

#002F85

Tritanopia (blue-blind)

#004153

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f2687;
/* rgb */ color: rgb(31, 38, 135);
/* oklch */ color: oklch(33.8% 0.158 271.3);

Tailwind

colors: {
  custom: {
    50: '#6d61ab',
    500: '#1f2687',
    950: '#000000',
  },
}

SCSS

$custom: #1f2687;
$custom-light: #6d61ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2687",
  "rgb": {
    "r": 31,
    "g": 38,
    "b": 135
  },
  "hsl": {
    "h": 235.962,
    "s": 62.651,
    "l": 32.549
  },
  "oklch": {
    "l": 0.3382,
    "c": 0.15816,
    "h": 271.3
  },
  "luminance": 0.03427
}

Semantic roles & 50–950 ramp

primary

#1F2687

secondary

#B8B14A

accent

#DB42E6

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1F2687

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

Preview Lab → · Contrast checker → · Palette generator →