#1F1669#1F1669

#1F1669 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.0% C 0.136 H 277.8°. Best body text is #FFFFFF at 15.25:1 contrast (WCAG AA passes).

Color values

HEX	#1F1669
RGB	rgb(31, 22, 105)
HSL	hsl(247, 65%, 25%)
HSV	hsv(247, 79%, 41%)
CMYK	cmyk(70.5%, 79%, 0%, 58.8%)
CIE-LAB	lab(14.87, 31.70, -46.62)
CIE-LCH	lch(14.87, 56.37, 304.22°)
OKLab	oklab(27.99% 0.0185 -0.1347)
OKLCH	oklch(27.99% 0.136 277.8)
XYZ	xyz(3.4010, 1.8848, 13.5464)
Luminance	0.0188 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1669 #606916

analogous

#163769 #1F1669 #491669

triadic

#1F1669 #691F16 #16691F

tetradic

#1F1669 #691637 #606916 #166949

square

#1F1669 #691637 #606916 #166949

split-complementary

#1F1669 #694916 #376916

monochromatic

#070519 #100B36 #1F1669 #2E219C #3D2BCE

Accessibility & contrast

On white

15.25

#1F1669 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#1F1669 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1669

15.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1669	#FFFFFF	#000000	##FFFFFF
##1F1669	1.00	15.25	1.38	15.25
#FFFFFF	15.25	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296B

Deuteranopia (green-blind)

#002268

Tritanopia (blue-blind)

#002E3E

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1f1669;
/* rgb */ color: rgb(31, 22, 105);
/* oklch */ color: oklch(28.0% 0.136 277.8);

Tailwind

colors: {
  custom: {
    50: '#675595',
    500: '#1f1669',
    950: '#000000',
  },
}

SCSS

$custom: #1f1669;
$custom-light: #675595;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1669",
  "rgb": {
    "r": 31,
    "g": 22,
    "b": 105
  },
  "hsl": {
    "h": 246.506,
    "s": 65.354,
    "l": 24.902
  },
  "oklch": {
    "l": 0.27994,
    "c": 0.13593,
    "h": 277.8
  },
  "luminance": 0.01885
}

Semantic roles & 50–950 ramp

primary

#1F1669

secondary

#959F3B

accent

#E83FD6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030D

muted

#7A787E

Preview Lab

Preview with #1F1669

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

Preview Lab → · Contrast checker → · Palette generator →