#1B2684#1B2684

#1B2684 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.3% C 0.155 H 269.8°. Best body text is #FFFFFF at 12.67:1 contrast (WCAG AA passes).

Color values

HEX	#1B2684
RGB	rgb(27, 38, 132)
HSL	hsl(234, 66%, 31%)
HSV	hsv(234, 80%, 52%)
CMYK	cmyk(79.5%, 71.2%, 0%, 48.2%)
CIE-LAB	lab(21.15, 31.00, -53.63)
CIE-LCH	lch(21.15, 61.94, 300.03°)
OKLab	oklab(33.29% -0.0004 -0.1553)
OKLCH	oklch(33.29% 0.155 269.8)
XYZ	xyz(5.3085, 3.2846, 22.1795)
Luminance	0.0328 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2684 #84791B

analogous

#1B5A84 #1B2684 #441B84

triadic

#1B2684 #841B26 #26841B

tetradic

#1B2684 #841B5A #84791B #1B8444

square

#1B2684 #841B5A #84791B #1B8444

split-complementary

#1B2684 #84441B #5A841B

monochromatic

#06091E #111751 #1B2684 #2535B7 #4151D8

Accessibility & contrast

On white

12.67

#1B2684 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#1B2684 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2684

12.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2684	#FFFFFF	#000000	##FFFFFF
##1B2684	1.00	12.67	1.66	12.67
#FFFFFF	12.67	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003887

Deuteranopia (green-blind)

#002E82

Tritanopia (blue-blind)

#004052

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1b2684;
/* rgb */ color: rgb(27, 38, 132);
/* oklch */ color: oklch(33.3% 0.155 269.8);

Tailwind

colors: {
  custom: {
    50: '#6b60a9',
    500: '#1b2684',
    950: '#000000',
  },
}

SCSS

$custom: #1b2684;
$custom-light: #6b60a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2684",
  "rgb": {
    "r": 27,
    "g": 38,
    "b": 132
  },
  "hsl": {
    "h": 233.714,
    "s": 66.038,
    "l": 31.176
  },
  "oklch": {
    "l": 0.33288,
    "c": 0.15526,
    "h": 269.8
  },
  "luminance": 0.03285
}

Semantic roles & 50–950 ramp

primary

#1B2684

secondary

#B7AB43

accent

#D73FE9

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#080510

muted

#7A797F

Preview Lab

Preview with #1B2684

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

Preview Lab → · Contrast checker → · Palette generator →