#1F1990#1F1990

#1F1990 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 33.0% C 0.182 H 272.3°. Best body text is #FFFFFF at 13.13:1 contrast (WCAG AA passes).

Color values

HEX	#1F1990
RGB	rgb(31, 25, 144)
HSL	hsl(243, 70%, 33%)
HSV	hsv(243, 83%, 56%)
CMYK	cmyk(78.5%, 82.6%, 0%, 43.5%)
CIE-LAB	lab(20.04, 43.12, -62.96)
CIE-LCH	lch(20.04, 76.31, 304.41°)
OKLab	oklab(32.96% 0.0073 -0.1822)
OKLCH	oklch(32.96% 0.182 272.3)
XYZ	xyz(5.9451, 2.9995, 26.6458)
Luminance	0.0300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1990 #8A9019

analogous

#194E90 #1F1990 #5A1990

triadic

#1F1990 #901F19 #19901F

tetradic

#1F1990 #90194E #8A9019 #19905A

square

#1F1990 #90194E #8A9019 #19905A

split-complementary

#1F1990 #905A19 #4E9019

monochromatic

#090728 #14105C #1F1990 #2A22C4 #4C45DF

Accessibility & contrast

On white

13.13

#1F1990 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#1F1990 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1990

13.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1990	#FFFFFF	#000000	##FFFFFF
##1F1990	1.00	13.13	1.60	13.13
#FFFFFF	13.13	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003693

Deuteranopia (green-blind)

#002A8E

Tritanopia (blue-blind)

#003F55

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1f1990;
/* rgb */ color: rgb(31, 25, 144);
/* oklch */ color: oklch(33.0% 0.182 272.3);

Tailwind

colors: {
  custom: {
    50: '#7059b2',
    500: '#1f1990',
    950: '#000000',
  },
}

SCSS

$custom: #1f1990;
$custom-light: #7059b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1990",
  "rgb": {
    "r": 31,
    "g": 25,
    "b": 144
  },
  "hsl": {
    "h": 243.025,
    "s": 70.414,
    "l": 33.137
  },
  "oklch": {
    "l": 0.32963,
    "c": 0.18233,
    "h": 272.3
  },
  "luminance": 0.03
}

Semantic roles & 50–950 ramp

primary

#1F1990

secondary

#BAC045

accent

#ED3BE4

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F1990

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

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