#1B2255#1B2255

#1B2255 is a dark, moderate blue. Relative luminance 0.020; OKLCH L 27.9% C 0.092 H 273.0°. Best body text is #FFFFFF at 14.93:1 contrast (WCAG AA passes).

Color values

HEX	#1B2255
RGB	rgb(27, 34, 85)
HSL	hsl(233, 52%, 22%)
HSV	hsv(233, 68%, 33%)
CMYK	cmyk(68.2%, 60%, 0%, 66.7%)
CIE-LAB	lab(15.66, 15.41, -32.03)
CIE-LCH	lch(15.66, 35.55, 295.69°)
OKLab	oklab(27.89% 0.0049 -0.092)
OKLCH	oklch(27.89% 0.092 273)
XYZ	xyz(2.6632, 2.0327, 8.8446)
Luminance	0.0203 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2255 #554E1B

analogous

#1B3F55 #1B2255 #311B55

triadic

#1B2255 #551B22 #22551B

tetradic

#1B2255 #551B3F #554E1B #1B5531

square

#1B2255 #551B3F #554E1B #1B5531

split-complementary

#1B2255 #55311B #3F551B

monochromatic

#070917 #0C0F27 #1B2255 #2A3583 #3947B2

Accessibility & contrast

On white

14.93

#1B2255 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#1B2255 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2255

14.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2255	#FFFFFF	#000000	##FFFFFF
##1B2255	1.00	14.93	1.41	14.93
#FFFFFF	14.93	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A57

Deuteranopia (green-blind)

#002554

Tritanopia (blue-blind)

#002E37

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1b2255;
/* rgb */ color: rgb(27, 34, 85);
/* oklch */ color: oklch(27.9% 0.092 273.0);

Tailwind

colors: {
  custom: {
    50: '#5f5c85',
    500: '#1b2255',
    950: '#000000',
  },
}

SCSS

$custom: #1b2255;
$custom-light: #5f5c85;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2255",
  "rgb": {
    "r": 27,
    "g": 34,
    "b": 85
  },
  "hsl": {
    "h": 232.759,
    "s": 51.786,
    "l": 21.961
  },
  "oklch": {
    "l": 0.27889,
    "c": 0.09214,
    "h": 273
  },
  "luminance": 0.02033
}

Semantic roles & 50–950 ramp

primary

#1B2255

secondary

#8B8241

accent

#CA4DDB

background

#F5F5F8

surface

#EAE9EF

border

#C6C5CA

text

#05040B

muted

#79797C

Preview Lab

Preview with #1B2255

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

Preview Lab → · Contrast checker → · Palette generator →