#1B2386#1B2386

#1B2386 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.0% C 0.161 H 270.3°. Best body text is #FFFFFF at 12.87:1 contrast (WCAG AA passes).

Color values

HEX	#1B2386
RGB	rgb(27, 35, 134)
HSL	hsl(236, 66%, 32%)
HSV	hsv(236, 80%, 53%)
CMYK	cmyk(79.9%, 73.9%, 0%, 47.5%)
CIE-LAB	lab(20.66, 33.67, -55.70)
CIE-LCH	lch(20.66, 65.08, 301.16°)
OKLab	oklab(33% 0.0008 -0.1613)
OKLCH	oklch(33% 0.161 270.3)
XYZ	xyz(5.3546, 3.1557, 22.8765)
Luminance	0.0316 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2386 #867E1B

analogous

#1B5986 #1B2386 #491B86

triadic

#1B2386 #861B23 #23861B

tetradic

#1B2386 #861B59 #867E1B #1B8649

square

#1B2386 #861B59 #867E1B #1B8649

split-complementary

#1B2386 #86491B #59861B

monochromatic

#060820 #111653 #1B2386 #2530B9 #424ED9

Accessibility & contrast

On white

12.87

#1B2386 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#1B2386 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2386

12.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2386	#FFFFFF	#000000	##FFFFFF
##1B2386	1.00	12.87	1.63	12.87
#FFFFFF	12.87	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003789

Deuteranopia (green-blind)

#002C84

Tritanopia (blue-blind)

#003F52

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1b2386;
/* rgb */ color: rgb(27, 35, 134);
/* oklch */ color: oklch(33.0% 0.161 270.3);

Tailwind

colors: {
  custom: {
    50: '#6b5eaa',
    500: '#1b2386',
    950: '#000000',
  },
}

SCSS

$custom: #1b2386;
$custom-light: #6b5eaa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2386",
  "rgb": {
    "r": 27,
    "g": 35,
    "b": 134
  },
  "hsl": {
    "h": 235.514,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.32997,
    "c": 0.16129,
    "h": 270.3
  },
  "luminance": 0.03156
}

Semantic roles & 50–950 ramp

primary

#1B2386

secondary

#B9B044

accent

#DD3EE9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1B2386

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

Preview Lab → · Contrast checker → · Palette generator →