#1B2497#1B2497

#1B2497 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.0% C 0.182 H 269.3°. Best body text is #FFFFFF at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#1B2497
RGB	rgb(27, 36, 151)
HSL	hsl(236, 70%, 35%)
HSV	hsv(236, 82%, 59%)
CMYK	cmyk(82.1%, 76.2%, 0%, 40.8%)
CIE-LAB	lab(22.75, 39.17, -62.81)
CIE-LCH	lch(22.75, 74.02, 301.95°)
OKLab	oklab(35.05% -0.0021 -0.182)
OKLCH	oklch(35.05% 0.182 269.3)
XYZ	xyz(6.6669, 3.7284, 29.6404)
Luminance	0.0373 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2497 #978E1B

analogous

#1B6297 #1B2497 #501B97

triadic

#1B2497 #971B24 #24971B

tetradic

#1B2497 #971B62 #978E1B #1B9750

square

#1B2497 #971B62 #978E1B #1B9750

split-complementary

#1B2497 #97501B #62971B

monochromatic

#080B2F #121863 #1B2497 #2430CB #4D58DF

Accessibility & contrast

On white

12.03

#1B2497 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1B2497 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2497

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2497	#FFFFFF	#000000	##FFFFFF
##1B2497	1.00	12.03	1.75	12.03
#FFFFFF	12.03	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9A

Deuteranopia (green-blind)

#003095

Tritanopia (blue-blind)

#00465C

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1b2497;
/* rgb */ color: rgb(27, 36, 151);
/* oklch */ color: oklch(35.0% 0.182 269.3);

Tailwind

colors: {
  custom: {
    50: '#7060b7',
    500: '#1b2497',
    950: '#000000',
  },
}

SCSS

$custom: #1b2497;
$custom-light: #7060b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2497",
  "rgb": {
    "r": 27,
    "g": 36,
    "b": 151
  },
  "hsl": {
    "h": 235.645,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.35049,
    "c": 0.18197,
    "h": 269.3
  },
  "luminance": 0.03729
}

Semantic roles & 50–950 ramp

primary

#1B2497

secondary

#C1B94C

accent

#E03BEC

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #1B2497

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

Preview Lab → · Contrast checker → · Palette generator →