#1B2882#1B2882

#1B2882 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.4% C 0.150 H 269.5°. Best body text is #FFFFFF at 12.56:1 contrast (WCAG AA passes).

Color values

HEX	#1B2882
RGB	rgb(27, 40, 130)
HSL	hsl(232, 66%, 31%)
HSV	hsv(232, 79%, 51%)
CMYK	cmyk(79.2%, 69.2%, 0%, 49%)
CIE-LAB	lab(21.44, 28.91, -51.89)
CIE-LCH	lch(21.44, 59.40, 299.12°)
OKLab	oklab(33.44% -0.0013 -0.1502)
OKLCH	oklch(33.44% 0.15 269.5)
XYZ	xyz(5.2387, 3.3617, 21.4875)
Luminance	0.0336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2882 #82751B

analogous

#1B5B82 #1B2882 #411B82

triadic

#1B2882 #821B28 #28821B

tetradic

#1B2882 #821B5B #82751B #1B8241

square

#1B2882 #821B5B #82751B #1B8241

split-complementary

#1B2882 #82411B #5B821B

monochromatic

#06091D #10184F #1B2882 #2638B5 #4053D7

Accessibility & contrast

On white

12.56

#1B2882 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1B2882 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2882

12.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2882	#FFFFFF	#000000	##FFFFFF
##1B2882	1.00	12.56	1.67	12.56
#FFFFFF	12.56	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003885

Deuteranopia (green-blind)

#002F80

Tritanopia (blue-blind)

#004051

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1b2882;
/* rgb */ color: rgb(27, 40, 130);
/* oklch */ color: oklch(33.4% 0.150 269.5);

Tailwind

colors: {
  custom: {
    50: '#6a62a7',
    500: '#1b2882',
    950: '#000000',
  },
}

SCSS

$custom: #1b2882;
$custom-light: #6a62a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2882",
  "rgb": {
    "r": 27,
    "g": 40,
    "b": 130
  },
  "hsl": {
    "h": 232.427,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.33436,
    "c": 0.1502,
    "h": 269.5
  },
  "luminance": 0.03362
}

Semantic roles & 50–950 ramp

primary

#1B2882

secondary

#B6A743

accent

#D33FE9

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#080510

muted

#7A797F

Preview Lab

Preview with #1B2882

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

Preview Lab → · Contrast checker → · Palette generator →