#1B2687#1B2687

#1B2687 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.6% C 0.159 H 269.7°. Best body text is #FFFFFF at 12.55:1 contrast (WCAG AA passes).

Color values

HEX	#1B2687
RGB	rgb(27, 38, 135)
HSL	hsl(234, 67%, 32%)
HSV	hsv(234, 80%, 53%)
CMYK	cmyk(80%, 71.9%, 0%, 47.1%)
CIE-LAB	lab(21.46, 32.12, -55.00)
CIE-LCH	lch(21.46, 63.69, 300.29°)
OKLab	oklab(33.61% -0.0008 -0.1593)
OKLCH	oklch(33.61% 0.159 269.7)
XYZ	xyz(5.5168, 3.3679, 23.2763)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2687 #877C1B

analogous

#1B5C87 #1B2687 #461B87

triadic

#1B2687 #871B26 #26871B

tetradic

#1B2687 #871B5C #877C1B #1B8746

square

#1B2687 #871B5C #877C1B #1B8746

split-complementary

#1B2687 #87461B #5C871B

monochromatic

#070921 #111854 #1B2687 #2534BA #4352D9

Accessibility & contrast

On white

12.55

#1B2687 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1B2687 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2687

12.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2687	#FFFFFF	#000000	##FFFFFF
##1B2687	1.00	12.55	1.67	12.55
#FFFFFF	12.55	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398A

Deuteranopia (green-blind)

#002E85

Tritanopia (blue-blind)

#004153

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1b2687;
/* rgb */ color: rgb(27, 38, 135);
/* oklch */ color: oklch(33.6% 0.159 269.7);

Tailwind

colors: {
  custom: {
    50: '#6b61ab',
    500: '#1b2687',
    950: '#000000',
  },
}

SCSS

$custom: #1b2687;
$custom-light: #6b61ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2687",
  "rgb": {
    "r": 27,
    "g": 38,
    "b": 135
  },
  "hsl": {
    "h": 233.889,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.33607,
    "c": 0.15926,
    "h": 269.7
  },
  "luminance": 0.03369
}

Semantic roles & 50–950 ramp

primary

#1B2687

secondary

#BAAE44

accent

#D83EEA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1B2687

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

Preview Lab → · Contrast checker → · Palette generator →