#1B216B#1B216B

#1B216B is a dark, vivid blue. Relative luminance 0.024; OKLCH L 29.8% C 0.127 H 272.3°. Best body text is #FFFFFF at 14.22:1 contrast (WCAG AA passes).

Color values

HEX	#1B216B
RGB	rgb(27, 33, 107)
HSL	hsl(236, 60%, 26%)
HSV	hsv(236, 75%, 42%)
CMYK	cmyk(74.8%, 69.2%, 0%, 58%)
CIE-LAB	lab(17.38, 24.81, -43.82)
CIE-LCH	lch(17.38, 50.35, 299.52°)
OKLab	oklab(29.78% 0.0052 -0.1266)
OKLCH	oklch(29.78% 0.127 272.3)
XYZ	xyz(3.6488, 2.3819, 14.1745)
Luminance	0.0238 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B216B #6B651B

analogous

#1B496B #1B216B #3D1B6B

triadic

#1B216B #6B1B21 #216B1B

tetradic

#1B216B #6B1B49 #6B651B #1B6B3D

square

#1B216B #6B1B49 #6B651B #1B6B3D

split-complementary

#1B216B #6B3D1B #496B1B

monochromatic

#060818 #0F123A #1B216B #27309C #3540CC

Accessibility & contrast

On white

14.22

#1B216B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#1B216B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B216B

14.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B216B	#FFFFFF	#000000	##FFFFFF
##1B216B	1.00	14.22	1.48	14.22
#FFFFFF	14.22	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E6D

Deuteranopia (green-blind)

#00276A

Tritanopia (blue-blind)

#003542

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1b216b;
/* rgb */ color: rgb(27, 33, 107);
/* oklch */ color: oklch(29.8% 0.127 272.3);

Tailwind

colors: {
  custom: {
    50: '#645c96',
    500: '#1b216b',
    950: '#000000',
  },
}

SCSS

$custom: #1b216b;
$custom-light: #645c96;
$custom-dark: #000000;

JSON

{
  "hex": "#1b216b",
  "rgb": {
    "r": 27,
    "g": 33,
    "b": 107
  },
  "hsl": {
    "h": 235.5,
    "s": 59.701,
    "l": 26.275
  },
  "oklch": {
    "l": 0.29779,
    "c": 0.12672,
    "h": 272.3
  },
  "luminance": 0.02382
}

Semantic roles & 50–950 ramp

primary

#1B216B

secondary

#A09942

accent

#D745E3

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #1B216B

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

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