#1C218B#1C218B

#1C218B is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.3% C 0.170 H 270.7°. Best body text is #FFFFFF at 12.81:1 contrast (WCAG AA passes).

Color values

HEX	#1C218B
RGB	rgb(28, 33, 139)
HSL	hsl(237, 66%, 33%)
HSV	hsv(237, 80%, 55%)
CMYK	cmyk(79.9%, 76.3%, 0%, 45.5%)
CIE-LAB	lab(20.82, 36.79, -58.56)
CIE-LCH	lch(20.82, 69.16, 302.14°)
OKLab	oklab(33.29% 0.002 -0.1696)
OKLCH	oklch(33.29% 0.17 270.7)
XYZ	xyz(5.6814, 3.1980, 24.7389)
Luminance	0.0320 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C218B #8B861C

analogous

#1C598B #1C218B #4E1C8B

triadic

#1C218B #8B1C21 #218B1C

tetradic

#1C218B #8B1C59 #8B861C #1C8B4E

square

#1C218B #8B1C59 #8B861C #1C8B4E

split-complementary

#1C218B #8B4E1C #598B1C

monochromatic

#070925 #121558 #1C218B #262DBE #474EDA

Accessibility & contrast

On white

12.81

#1C218B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1C218B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C218B

12.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C218B	#FFFFFF	#000000	##FFFFFF
##1C218B	1.00	12.81	1.64	12.81
#FFFFFF	12.81	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00388E

Deuteranopia (green-blind)

#002D89

Tritanopia (blue-blind)

#004054

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1c218b;
/* rgb */ color: rgb(28, 33, 139);
/* oklch */ color: oklch(33.3% 0.170 270.7);

Tailwind

colors: {
  custom: {
    50: '#6d5dae',
    500: '#1c218b',
    950: '#000000',
  },
}

SCSS

$custom: #1c218b;
$custom-light: #6d5dae;
$custom-dark: #000000;

JSON

{
  "hex": "#1c218b",
  "rgb": {
    "r": 28,
    "g": 33,
    "b": 139
  },
  "hsl": {
    "h": 237.297,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.33291,
    "c": 0.16959,
    "h": 270.7
  },
  "luminance": 0.03199
}

Semantic roles & 50–950 ramp

primary

#1C218B

secondary

#BCB747

accent

#E23EE9

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#080410

muted

#7B797F

Preview Lab

Preview with #1C218B

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

Preview Lab → · Contrast checker → · Palette generator →