#1F1668#1F1668

#1F1668 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 27.9% C 0.135 H 278.0°. Best body text is #FFFFFF at 15.29:1 contrast (WCAG AA passes).

Color values

HEX	#1F1668
RGB	rgb(31, 22, 104)
HSL	hsl(247, 65%, 25%)
HSV	hsv(247, 79%, 41%)
CMYK	cmyk(70.2%, 78.8%, 0%, 59.2%)
CIE-LAB	lab(14.76, 31.35, -46.15)
CIE-LCH	lch(14.76, 55.79, 304.19°)
OKLab	oklab(27.88% 0.0188 -0.1333)
OKLCH	oklch(27.88% 0.135 278)
XYZ	xyz(3.3499, 1.8643, 13.2773)
Luminance	0.0186 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1668 #5F6816

analogous

#163668 #1F1668 #481668

triadic

#1F1668 #681F16 #16681F

tetradic

#1F1668 #681636 #5F6816 #166848

square

#1F1668 #681636 #5F6816 #166848

split-complementary

#1F1668 #684816 #366816

monochromatic

#080519 #100B35 #1F1668 #2E219B #3D2BCD

Accessibility & contrast

On white

15.29

#1F1668 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#1F1668 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1668

15.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1668	#FFFFFF	#000000	##FFFFFF
##1F1668	1.00	15.29	1.37	15.29
#FFFFFF	15.29	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00286A

Deuteranopia (green-blind)

#002267

Tritanopia (blue-blind)

#002E3E

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1f1668;
/* rgb */ color: rgb(31, 22, 104);
/* oklch */ color: oklch(27.9% 0.135 278.0);

Tailwind

colors: {
  custom: {
    50: '#665594',
    500: '#1f1668',
    950: '#000000',
  },
}

SCSS

$custom: #1f1668;
$custom-light: #665594;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1668",
  "rgb": {
    "r": 31,
    "g": 22,
    "b": 104
  },
  "hsl": {
    "h": 246.585,
    "s": 65.079,
    "l": 24.706
  },
  "oklch": {
    "l": 0.27881,
    "c": 0.1346,
    "h": 278
  },
  "luminance": 0.01865
}

Semantic roles & 50–950 ramp

primary

#1F1668

secondary

#949F3B

accent

#E840D6

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#07030D

muted

#7A787E

Preview Lab

Preview with #1F1668

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

Preview Lab → · Contrast checker → · Palette generator →