#1B215F#1B215F

#1B215F is a dark, moderate blue. Relative luminance 0.021; OKLCH L 28.6% C 0.109 H 273.1°. Best body text is #FFFFFF at 14.69:1 contrast (WCAG AA passes).

Color values

HEX	#1B215F
RGB	rgb(27, 33, 95)
HSL	hsl(235, 56%, 24%)
HSV	hsv(235, 72%, 37%)
CMYK	cmyk(71.6%, 65.3%, 0%, 62.7%)
CIE-LAB	lab(16.24, 20.11, -37.78)
CIE-LCH	lch(16.24, 42.80, 298.03°)
OKLab	oklab(28.59% 0.0059 -0.1089)
OKLCH	oklch(28.59% 0.109 273.1)
XYZ	xyz(3.0607, 2.1467, 11.0773)
Luminance	0.0215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B215F #5F591B

analogous

#1B435F #1B215F #371B5F

triadic

#1B215F #5F1B21 #215F1B

tetradic

#1B215F #5F1B43 #5F591B #1B5F37

square

#1B215F #5F1B43 #5F591B #1B5F37

split-complementary

#1B215F #5F371B #435F1B

monochromatic

#070818 #0D102F #1B215F #29328F #3642BE

Accessibility & contrast

On white

14.69

#1B215F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1B215F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B215F

14.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B215F	#FFFFFF	#000000	##FFFFFF
##1B215F	1.00	14.69	1.43	14.69
#FFFFFF	14.69	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B61

Deuteranopia (green-blind)

#00255E

Tritanopia (blue-blind)

#00313C

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1b215f;
/* rgb */ color: rgb(27, 33, 95);
/* oklch */ color: oklch(28.6% 0.109 273.1);

Tailwind

colors: {
  custom: {
    50: '#615c8d',
    500: '#1b215f',
    950: '#000000',
  },
}

SCSS

$custom: #1b215f;
$custom-light: #615c8d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b215f",
  "rgb": {
    "r": 27,
    "g": 33,
    "b": 95
  },
  "hsl": {
    "h": 234.706,
    "s": 55.738,
    "l": 23.922
  },
  "oklch": {
    "l": 0.28593,
    "c": 0.10907,
    "h": 273.1
  },
  "luminance": 0.02147
}

Semantic roles & 50–950 ramp

primary

#1B215F

secondary

#958D41

accent

#D249DF

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05040C

muted

#7A797D

Preview Lab

Preview with #1B215F

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

Preview Lab → · Contrast checker → · Palette generator →