#1C1F97#1C1F97

#1C1F97 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.4% C 0.186 H 270.2°. Best body text is #FFFFFF at 12.41:1 contrast (WCAG AA passes).

Color values

HEX	#1C1F97
RGB	rgb(28, 31, 151)
HSL	hsl(239, 69%, 35%)
HSV	hsv(239, 81%, 59%)
CMYK	cmyk(81.5%, 79.5%, 0%, 40.8%)
CIE-LAB	lab(21.80, 42.09, -64.38)
CIE-LCH	lch(21.80, 76.92, 303.17°)
OKLab	oklab(34.39% 0.0005 -0.1864)
OKLCH	oklch(34.39% 0.186 270.2)
XYZ	xyz(6.5529, 3.4605, 29.5947)
Luminance	0.0346 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1F97 #97941C

analogous

#1C5C97 #1C1F97 #571C97

triadic

#1C1F97 #971C1F #1F971C

tetradic

#1C1F97 #971C5C #97941C #1C9757

square

#1C1F97 #971C5C #97941C #1C9757

split-complementary

#1C1F97 #97571C #5C971C

monochromatic

#090A30 #121463 #1C1F97 #262ACB #4F53DE

Accessibility & contrast

On white

12.41

#1C1F97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1C1F97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1F97

12.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1F97	#FFFFFF	#000000	##FFFFFF
##1C1F97	1.00	12.41	1.69	12.41
#FFFFFF	12.41	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A9A

Deuteranopia (green-blind)

#002E95

Tritanopia (blue-blind)

#00445B

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1c1f97;
/* rgb */ color: rgb(28, 31, 151);
/* oklch */ color: oklch(34.4% 0.186 270.2);

Tailwind

colors: {
  custom: {
    50: '#715db7',
    500: '#1c1f97',
    950: '#000000',
  },
}

SCSS

$custom: #1c1f97;
$custom-light: #715db7;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1f97",
  "rgb": {
    "r": 28,
    "g": 31,
    "b": 151
  },
  "hsl": {
    "h": 238.537,
    "s": 68.715,
    "l": 35.098
  },
  "oklch": {
    "l": 0.3439,
    "c": 0.18645,
    "h": 270.2
  },
  "luminance": 0.03461
}

Semantic roles & 50–950 ramp

primary

#1C1F97

secondary

#C1BE4E

accent

#E73CEC

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1C1F97

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

Preview Lab → · Contrast checker → · Palette generator →