#1B1990#1B1990

#1B1990 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.7% C 0.183 H 270.8°. Best body text is #FFFFFF at 13.22:1 contrast (WCAG AA passes).

Color values

HEX	#1B1990
RGB	rgb(27, 25, 144)
HSL	hsl(241, 70%, 33%)
HSV	hsv(241, 83%, 56%)
CMYK	cmyk(81.3%, 82.6%, 0%, 43.5%)
CIE-LAB	lab(19.81, 42.87, -63.35)
CIE-LCH	lch(19.81, 76.50, 304.09°)
OKLab	oklab(32.74% 0.0025 -0.1834)
OKLCH	oklch(32.74% 0.183 270.8)
XYZ	xyz(5.8320, 2.9412, 26.6405)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1990 #8E9019

analogous

#195390 #1B1990 #561990

triadic

#1B1990 #901B19 #19901B

tetradic

#1B1990 #901953 #8E9019 #199056

square

#1B1990 #901953 #8E9019 #199056

split-complementary

#1B1990 #905619 #539019

monochromatic

#070728 #11105C #1B1990 #2522C4 #4745DF

Accessibility & contrast

On white

13.22

#1B1990 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1B1990 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1990

13.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1990	#FFFFFF	#000000	##FFFFFF
##1B1990	1.00	13.22	1.59	13.22
#FFFFFF	13.22	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.22	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: #1b1990;
/* rgb */ color: rgb(27, 25, 144);
/* oklch */ color: oklch(32.7% 0.183 270.8);

Tailwind

colors: {
  custom: {
    50: '#6f59b2',
    500: '#1b1990',
    950: '#000000',
  },
}

SCSS

$custom: #1b1990;
$custom-light: #6f59b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1990",
  "rgb": {
    "r": 27,
    "g": 25,
    "b": 144
  },
  "hsl": {
    "h": 241.008,
    "s": 70.414,
    "l": 33.137
  },
  "oklch": {
    "l": 0.32736,
    "c": 0.18342,
    "h": 270.8
  },
  "luminance": 0.02942
}

Semantic roles & 50–950 ramp

primary

#1B1990

secondary

#BEC045

accent

#ED3BEA

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1B1990

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

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