#1B216C#1B216C

#1B216C is a dark, vivid blue. Relative luminance 0.024; OKLCH L 29.9% C 0.128 H 272.3°. Best body text is #FFFFFF at 14.18:1 contrast (WCAG AA passes).

Color values

HEX	#1B216C
RGB	rgb(27, 33, 108)
HSL	hsl(236, 60%, 26%)
HSV	hsv(236, 75%, 42%)
CMYK	cmyk(75%, 69.4%, 0%, 57.6%)
CIE-LAB	lab(17.47, 25.20, -44.31)
CIE-LCH	lch(17.47, 50.97, 299.62°)
OKLab	oklab(29.88% 0.0051 -0.128)
OKLCH	oklch(29.88% 0.128 272.3)
XYZ	xyz(3.7017, 2.4031, 14.4532)
Luminance	0.0240 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B216C #6C661B

analogous

#1B4A6C #1B216C #3E1B6C

triadic

#1B216C #6C1B21 #216C1B

tetradic

#1B216C #6C1B4A #6C661B #1B6C3E

square

#1B216C #6C1B4A #6C661B #1B6C3E

split-complementary

#1B216C #6C3E1B #4A6C1B

monochromatic

#060718 #0F123B #1B216C #27309D #3540CC

Accessibility & contrast

On white

14.18

#1B216C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#1B216C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B216C

14.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B216C	#FFFFFF	#000000	##FFFFFF
##1B216C	1.00	14.18	1.48	14.18
#FFFFFF	14.18	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F6E

Deuteranopia (green-blind)

#00276B

Tritanopia (blue-blind)

#003543

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1b216c;
/* rgb */ color: rgb(27, 33, 108);
/* oklch */ color: oklch(29.9% 0.128 272.3);

Tailwind

colors: {
  custom: {
    50: '#655c97',
    500: '#1b216c',
    950: '#000000',
  },
}

SCSS

$custom: #1b216c;
$custom-light: #655c97;
$custom-dark: #000000;

JSON

{
  "hex": "#1b216c",
  "rgb": {
    "r": 27,
    "g": 33,
    "b": 108
  },
  "hsl": {
    "h": 235.556,
    "s": 60,
    "l": 26.471
  },
  "oklch": {
    "l": 0.29881,
    "c": 0.12815,
    "h": 272.3
  },
  "luminance": 0.02403
}

Semantic roles & 50–950 ramp

primary

#1B216C

secondary

#A19A42

accent

#D745E3

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #1B216C

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

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