#1C1C97#1C1C97

#1C1C97 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 34.0% C 0.189 H 270.4°. Best body text is #FFFFFF at 12.63:1 contrast (WCAG AA passes).

Color values

HEX	#1C1C97
RGB	rgb(28, 28, 151)
HSL	hsl(240, 69%, 35%)
HSV	hsv(240, 81%, 59%)
CMYK	cmyk(81.5%, 81.5%, 0%, 40.8%)
CIE-LAB	lab(21.25, 43.69, -65.29)
CIE-LCH	lch(21.25, 78.56, 303.78°)
OKLab	oklab(34% 0.0013 -0.1891)
OKLCH	oklch(34% 0.189 270.4)
XYZ	xyz(6.4782, 3.3110, 29.5698)
Luminance	0.0331 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1C97 #97971C

analogous

#1C5997 #1C1C97 #591C97

triadic

#1C1C97 #971C1C #1C971C

tetradic

#1C1C97 #971C59 #97971C #1C9759

square

#1C1C97 #971C59 #97971C #1C9759

split-complementary

#1C1C97 #97591C #59971C

monochromatic

#090930 #121263 #1C1C97 #2626CB #4F4FDE

Accessibility & contrast

On white

12.63

#1C1C97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#1C1C97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1C97

12.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1C97	#FFFFFF	#000000	##FFFFFF
##1C1C97	1.00	12.63	1.66	12.63
#FFFFFF	12.63	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00399A

Deuteranopia (green-blind)

#002D95

Tritanopia (blue-blind)

#00435A

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1c1c97;
/* rgb */ color: rgb(28, 28, 151);
/* oklch */ color: oklch(34.0% 0.189 270.4);

Tailwind

colors: {
  custom: {
    50: '#715bb7',
    500: '#1c1c97',
    950: '#000000',
  },
}

SCSS

$custom: #1c1c97;
$custom-light: #715bb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1c97",
  "rgb": {
    "r": 28,
    "g": 28,
    "b": 151
  },
  "hsl": {
    "h": 240,
    "s": 68.715,
    "l": 35.098
  },
  "oklch": {
    "l": 0.34003,
    "c": 0.18906,
    "h": 270.4
  },
  "luminance": 0.03312
}

Semantic roles & 50–950 ramp

primary

#1C1C97

secondary

#C1C14E

accent

#EC3CEC

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1C1C97

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

Preview Lab → · Contrast checker → · Palette generator →