#1B2A97#1B2A97

#1B2A97 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 36.0% C 0.176 H 268.6°. Best body text is #FFFFFF at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#1B2A97
RGB	rgb(27, 42, 151)
HSL	hsl(233, 70%, 35%)
HSV	hsv(233, 82%, 59%)
CMYK	cmyk(82.1%, 72.2%, 0%, 40.8%)
CIE-LAB	lab(24.07, 35.49, -60.63)
CIE-LCH	lch(24.07, 70.25, 300.35°)
OKLab	oklab(35.99% -0.0044 -0.1756)
OKLCH	oklch(35.99% 0.176 268.6)
XYZ	xyz(6.8639, 4.1225, 29.7061)
Luminance	0.0412 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2A97 #97881B

analogous

#1B6897 #1B2A97 #4A1B97

triadic

#1B2A97 #971B2A #2A971B

tetradic

#1B2A97 #971B68 #97881B #1B974A

square

#1B2A97 #971B68 #97881B #1B974A

split-complementary

#1B2A97 #974A1B #68971B

monochromatic

#080D2F #121C63 #1B2A97 #2438CB #4D5FDF

Accessibility & contrast

On white

11.51

#1B2A97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1B2A97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2A97

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2A97	#FFFFFF	#000000	##FFFFFF
##1B2A97	1.00	11.51	1.82	11.51
#FFFFFF	11.51	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F9A

Deuteranopia (green-blind)

#003395

Tritanopia (blue-blind)

#00495D

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1b2a97;
/* rgb */ color: rgb(27, 42, 151);
/* oklch */ color: oklch(36.0% 0.176 268.6);

Tailwind

colors: {
  custom: {
    50: '#6f64b7',
    500: '#1b2a97',
    950: '#000000',
  },
}

SCSS

$custom: #1b2a97;
$custom-light: #6f64b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2a97",
  "rgb": {
    "r": 27,
    "g": 42,
    "b": 151
  },
  "hsl": {
    "h": 232.742,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.35994,
    "c": 0.1757,
    "h": 268.6
  },
  "luminance": 0.04123
}

Semantic roles & 50–950 ramp

primary

#1B2A97

secondary

#C1B34C

accent

#D73BEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090511

muted

#7B7A80

Preview Lab

Preview with #1B2A97

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

Preview Lab → · Contrast checker → · Palette generator →