#1F1989#1F1989

#1F1989 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.1% C 0.174 H 273.0°. Best body text is #FFFFFF at 13.47:1 contrast (WCAG AA passes).

Color values

HEX	#1F1989
RGB	rgb(31, 25, 137)
HSL	hsl(243, 69%, 32%)
HSV	hsv(243, 82%, 54%)
CMYK	cmyk(77.4%, 81.8%, 0%, 46.3%)
CIE-LAB	lab(19.19, 40.84, -60.00)
CIE-LCH	lch(19.19, 72.58, 304.25°)
OKLab	oklab(32.12% 0.0091 -0.1736)
OKLCH	oklch(32.12% 0.174 273)
XYZ	xyz(5.4266, 2.7921, 23.9150)
Luminance	0.0279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1989 #838919

analogous

#194B89 #1F1989 #571989

triadic

#1F1989 #891F19 #19891F

tetradic

#1F1989 #89194B #838919 #198957

square

#1F1989 #89194B #838919 #198957

split-complementary

#1F1989 #895719 #4B8919

monochromatic

#080621 #131055 #1F1989 #2B22BD #4940DC

Accessibility & contrast

On white

13.47

#1F1989 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1F1989 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1989

13.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1989	#FFFFFF	#000000	##FFFFFF
##1F1989	1.00	13.47	1.56	13.47
#FFFFFF	13.47	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348C

Deuteranopia (green-blind)

#002987

Tritanopia (blue-blind)

#003C51

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1f1989;
/* rgb */ color: rgb(31, 25, 137);
/* oklch */ color: oklch(32.1% 0.174 273.0);

Tailwind

colors: {
  custom: {
    50: '#6f59ad',
    500: '#1f1989',
    950: '#000000',
  },
}

SCSS

$custom: #1f1989;
$custom-light: #6f59ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1989",
  "rgb": {
    "r": 31,
    "g": 25,
    "b": 137
  },
  "hsl": {
    "h": 243.214,
    "s": 69.136,
    "l": 31.765
  },
  "oklch": {
    "l": 0.32124,
    "c": 0.17383,
    "h": 273
  },
  "luminance": 0.02793
}

Semantic roles & 50–950 ramp

primary

#1F1989

secondary

#B6BC41

accent

#EC3CE3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #1F1989

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

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