#1F1689#1F1689

#1F1689 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.8% C 0.176 H 273.3°. Best body text is #FFFFFF at 13.69:1 contrast (WCAG AA passes).

Color values

HEX	#1F1689
RGB	rgb(31, 22, 137)
HSL	hsl(245, 72%, 31%)
HSV	hsv(245, 84%, 54%)
CMYK	cmyk(77.4%, 83.9%, 0%, 46.3%)
CIE-LAB	lab(18.67, 42.35, -60.85)
CIE-LCH	lch(18.67, 74.14, 304.84°)
OKLab	oklab(31.77% 0.0101 -0.176)
OKLCH	oklch(31.77% 0.176 273.3)
XYZ	xyz(5.3658, 2.6707, 23.8948)
Luminance	0.0267 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1689 #808916

analogous

#164689 #1F1689 #581689

triadic

#1F1689 #891F16 #16891F

tetradic

#1F1689 #891646 #808916 #168958

square

#1F1689 #891646 #808916 #168958

split-complementary

#1F1689 #895816 #468916

monochromatic

#070520 #130E54 #1F1689 #2B1EBE #473ADF

Accessibility & contrast

On white

13.69

#1F1689 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1F1689 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1689

13.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1689	#FFFFFF	#000000	##FFFFFF
##1F1689	1.00	13.69	1.53	13.69
#FFFFFF	13.69	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338C

Deuteranopia (green-blind)

#002887

Tritanopia (blue-blind)

#003B51

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1f1689;
/* rgb */ color: rgb(31, 22, 137);
/* oklch */ color: oklch(31.8% 0.176 273.3);

Tailwind

colors: {
  custom: {
    50: '#6f57ad',
    500: '#1f1689',
    950: '#000000',
  },
}

SCSS

$custom: #1f1689;
$custom-light: #6f57ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1689",
  "rgb": {
    "r": 31,
    "g": 22,
    "b": 137
  },
  "hsl": {
    "h": 244.696,
    "s": 72.327,
    "l": 31.176
  },
  "oklch": {
    "l": 0.31765,
    "c": 0.17632,
    "h": 273.3
  },
  "luminance": 0.02671
}

Semantic roles & 50–950 ramp

primary

#1F1689

secondary

#B3BD3E

accent

#EF39E1

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #1F1689

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

Preview Lab → · Contrast checker → · Palette generator →