#1B2297#1B2297

#1B2297 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.8% C 0.184 H 269.5°. Best body text is #FFFFFF at 12.19:1 contrast (WCAG AA passes).

Color values

HEX	#1B2297
RGB	rgb(27, 34, 151)
HSL	hsl(237, 70%, 35%)
HSV	hsv(237, 82%, 59%)
CMYK	cmyk(82.1%, 77.5%, 0%, 40.8%)
CIE-LAB	lab(22.34, 40.34, -63.49)
CIE-LCH	lch(22.34, 75.22, 302.43°)
OKLab	oklab(34.76% -0.0015 -0.1839)
OKLCH	oklch(34.76% 0.184 269.5)
XYZ	xyz(6.6080, 3.6107, 29.6208)
Luminance	0.0361 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2297 #97901B

analogous

#1B6097 #1B2297 #521B97

triadic

#1B2297 #971B22 #22971B

tetradic

#1B2297 #971B60 #97901B #1B9752

square

#1B2297 #971B60 #97901B #1B9752

split-complementary

#1B2297 #97521B #60971B

monochromatic

#080B2F #121663 #1B2297 #242ECB #4D55DF

Accessibility & contrast

On white

12.19

#1B2297 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1B2297 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2297

12.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2297	#FFFFFF	#000000	##FFFFFF
##1B2297	1.00	12.19	1.72	12.19
#FFFFFF	12.19	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9A

Deuteranopia (green-blind)

#002F95

Tritanopia (blue-blind)

#00455B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1b2297;
/* rgb */ color: rgb(27, 34, 151);
/* oklch */ color: oklch(34.8% 0.184 269.5);

Tailwind

colors: {
  custom: {
    50: '#705fb7',
    500: '#1b2297',
    950: '#000000',
  },
}

SCSS

$custom: #1b2297;
$custom-light: #705fb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2297",
  "rgb": {
    "r": 27,
    "g": 34,
    "b": 151
  },
  "hsl": {
    "h": 236.613,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.34756,
    "c": 0.18393,
    "h": 269.5
  },
  "luminance": 0.03611
}

Semantic roles & 50–950 ramp

primary

#1B2297

secondary

#C1BB4C

accent

#E23BEC

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1B2297

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

Preview Lab → · Contrast checker → · Palette generator →