#1B2C84#1B2C84

#1B2C84 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.4% C 0.148 H 268.5°. Best body text is #FFFFFF at 12.07:1 contrast (WCAG AA passes).

Color values

HEX	#1B2C84
RGB	rgb(27, 44, 132)
HSL	hsl(230, 66%, 31%)
HSV	hsv(230, 80%, 52%)
CMYK	cmyk(79.5%, 66.7%, 0%, 48.2%)
CIE-LAB	lab(22.65, 26.98, -51.16)
CIE-LCH	lch(22.65, 57.83, 297.80°)
OKLab	oklab(34.38% -0.0039 -0.148)
OKLCH	oklch(34.38% 0.148 268.5)
XYZ	xyz(5.5161, 3.6997, 22.2487)
Luminance	0.0370 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2C84 #84731B

analogous

#1B6084 #1B2C84 #3E1B84

triadic

#1B2C84 #841B2C #2C841B

tetradic

#1B2C84 #841B60 #84731B #1B843E

square

#1B2C84 #841B60 #84731B #1B843E

split-complementary

#1B2C84 #843E1B #60841B

monochromatic

#060A1E #111B51 #1B2C84 #253DB7 #415AD8

Accessibility & contrast

On white

12.07

#1B2C84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1B2C84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2C84

12.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2C84	#FFFFFF	#000000	##FFFFFF
##1B2C84	1.00	12.07	1.74	12.07
#FFFFFF	12.07	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B87

Deuteranopia (green-blind)

#003182

Tritanopia (blue-blind)

#004354

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1b2c84;
/* rgb */ color: rgb(27, 44, 132);
/* oklch */ color: oklch(34.4% 0.148 268.5);

Tailwind

colors: {
  custom: {
    50: '#6a65a9',
    500: '#1b2c84',
    950: '#000000',
  },
}

SCSS

$custom: #1b2c84;
$custom-light: #6a65a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2c84",
  "rgb": {
    "r": 27,
    "g": 44,
    "b": 132
  },
  "hsl": {
    "h": 230.286,
    "s": 66.038,
    "l": 31.176
  },
  "oklch": {
    "l": 0.34384,
    "c": 0.14806,
    "h": 268.5
  },
  "luminance": 0.037
}

Semantic roles & 50–950 ramp

primary

#1B2C84

secondary

#B7A543

accent

#CD3FE9

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080510

muted

#7A7A7F

Preview Lab

Preview with #1B2C84

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

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