#1B216E#1B216E

#1B216E is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.1% C 0.131 H 272.1°. Best body text is #FFFFFF at 14.10:1 contrast (WCAG AA passes).

Color values

HEX	#1B216E
RGB	rgb(27, 33, 110)
HSL	hsl(236, 61%, 27%)
HSV	hsv(236, 75%, 43%)
CMYK	cmyk(75.5%, 70%, 0%, 56.9%)
CIE-LAB	lab(17.67, 25.97, -45.28)
CIE-LCH	lch(17.67, 52.20, 299.83°)
OKLab	oklab(30.09% 0.0049 -0.1309)
OKLCH	oklch(30.09% 0.131 272.1)
XYZ	xyz(3.8094, 2.4461, 15.0202)
Luminance	0.0245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B216E #6E681B

analogous

#1B4B6E #1B216E #3F1B6E

triadic

#1B216E #6E1B21 #216E1B

tetradic

#1B216E #6E1B4B #6E681B #1B6E3F

square

#1B216E #6E1B4B #6E681B #1B6E3F

split-complementary

#1B216E #6E3F1B #4B6E1B

monochromatic

#060719 #0F123D #1B216E #27309F #3641CE

Accessibility & contrast

On white

14.10

#1B216E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#1B216E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B216E

14.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B216E	#FFFFFF	#000000	##FFFFFF
##1B216E	1.00	14.10	1.49	14.10
#FFFFFF	14.10	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F70

Deuteranopia (green-blind)

#00276D

Tritanopia (blue-blind)

#003644

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1b216e;
/* rgb */ color: rgb(27, 33, 110);
/* oklch */ color: oklch(30.1% 0.131 272.1);

Tailwind

colors: {
  custom: {
    50: '#655c98',
    500: '#1b216e',
    950: '#000000',
  },
}

SCSS

$custom: #1b216e;
$custom-light: #655c98;
$custom-dark: #000000;

JSON

{
  "hex": "#1b216e",
  "rgb": {
    "r": 27,
    "g": 33,
    "b": 110
  },
  "hsl": {
    "h": 235.663,
    "s": 60.584,
    "l": 26.863
  },
  "oklch": {
    "l": 0.30087,
    "c": 0.13099,
    "h": 272.1
  },
  "luminance": 0.02447
}

Semantic roles & 50–950 ramp

primary

#1B216E

secondary

#A39C42

accent

#D844E4

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #1B216E

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

Preview Lab → · Contrast checker → · Palette generator →