#1B2B97#1B2B97

#1B2B97 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.2% C 0.175 H 268.4°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#1B2B97
RGB	rgb(27, 43, 151)
HSL	hsl(232, 70%, 35%)
HSV	hsv(232, 82%, 59%)
CMYK	cmyk(82.1%, 71.5%, 0%, 40.8%)
CIE-LAB	lab(24.30, 34.86, -60.24)
CIE-LCH	lch(24.30, 69.60, 300.05°)
OKLab	oklab(36.16% -0.0048 -0.1745)
OKLCH	oklch(36.16% 0.175 268.4)
XYZ	xyz(6.8999, 4.1943, 29.7181)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2B97 #97871B

analogous

#1B6997 #1B2B97 #491B97

triadic

#1B2B97 #971B2B #2B971B

tetradic

#1B2B97 #971B69 #97871B #1B9749

square

#1B2B97 #971B69 #97871B #1B9749

split-complementary

#1B2B97 #97491B #69971B

monochromatic

#080D2F #121C63 #1B2B97 #243ACB #4D60DF

Accessibility & contrast

On white

11.42

#1B2B97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#1B2B97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2B97

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2B97	#FFFFFF	#000000	##FFFFFF
##1B2B97	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00409A

Deuteranopia (green-blind)

#003495

Tritanopia (blue-blind)

#00495E

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1b2b97;
/* rgb */ color: rgb(27, 43, 151);
/* oklch */ color: oklch(36.2% 0.175 268.4);

Tailwind

colors: {
  custom: {
    50: '#6f65b7',
    500: '#1b2b97',
    950: '#000000',
  },
}

SCSS

$custom: #1b2b97;
$custom-light: #6f65b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2b97",
  "rgb": {
    "r": 27,
    "g": 43,
    "b": 151
  },
  "hsl": {
    "h": 232.258,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.3616,
    "c": 0.17461,
    "h": 268.4
  },
  "luminance": 0.04195
}

Semantic roles & 50–950 ramp

primary

#1B2B97

secondary

#C1B24C

accent

#D63BEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090511

muted

#7B7A80

Preview Lab

Preview with #1B2B97

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

Preview Lab → · Contrast checker → · Palette generator →