#1B216A#1B216A

#1B216A is a dark, vivid blue. Relative luminance 0.024; OKLCH L 29.7% C 0.125 H 272.4°. Best body text is #FFFFFF at 14.26:1 contrast (WCAG AA passes).

Color values

HEX	#1B216A
RGB	rgb(27, 33, 106)
HSL	hsl(235, 59%, 26%)
HSV	hsv(235, 75%, 42%)
CMYK	cmyk(74.5%, 68.9%, 0%, 58.4%)
CIE-LAB	lab(17.28, 24.42, -43.33)
CIE-LCH	lch(17.28, 49.74, 299.41°)
OKLab	oklab(29.68% 0.0053 -0.1252)
OKLCH	oklch(29.68% 0.125 272.4)
XYZ	xyz(3.5965, 2.3610, 13.8991)
Luminance	0.0236 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B216A #6A641B

analogous

#1B486A #1B216A #3C1B6A

triadic

#1B216A #6A1B21 #216A1B

tetradic

#1B216A #6A1B48 #6A641B #1B6A3C

square

#1B216A #6A1B48 #6A641B #1B6A3C

split-complementary

#1B216A #6A3C1B #486A1B

monochromatic

#060818 #0F1239 #1B216A #27309B #3440CB

Accessibility & contrast

On white

14.26

#1B216A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#1B216A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B216A

14.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B216A	#FFFFFF	#000000	##FFFFFF
##1B216A	1.00	14.26	1.47	14.26
#FFFFFF	14.26	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E6C

Deuteranopia (green-blind)

#002769

Tritanopia (blue-blind)

#003442

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1b216a;
/* rgb */ color: rgb(27, 33, 106);
/* oklch */ color: oklch(29.7% 0.125 272.4);

Tailwind

colors: {
  custom: {
    50: '#645c95',
    500: '#1b216a',
    950: '#000000',
  },
}

SCSS

$custom: #1b216a;
$custom-light: #645c95;
$custom-dark: #000000;

JSON

{
  "hex": "#1b216a",
  "rgb": {
    "r": 27,
    "g": 33,
    "b": 106
  },
  "hsl": {
    "h": 235.443,
    "s": 59.398,
    "l": 26.078
  },
  "oklch": {
    "l": 0.29678,
    "c": 0.12528,
    "h": 272.4
  },
  "luminance": 0.02361
}

Semantic roles & 50–950 ramp

primary

#1B216A

secondary

#9F9842

accent

#D745E3

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #1B216A

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

Preview Lab → · Contrast checker → · Palette generator →