#1F1C97#1F1C97

#1F1C97 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.2% C 0.188 H 271.5°. Best body text is #FFFFFF at 12.57:1 contrast (WCAG AA passes).

Color values

HEX	#1F1C97
RGB	rgb(31, 28, 151)
HSL	hsl(241, 69%, 35%)
HSV	hsv(241, 81%, 59%)
CMYK	cmyk(79.5%, 81.5%, 0%, 40.8%)
CIE-LAB	lab(21.41, 43.87, -65.01)
CIE-LCH	lch(21.41, 78.43, 304.01°)
OKLab	oklab(34.16% 0.0048 -0.1882)
OKLCH	oklch(34.16% 0.188 271.5)
XYZ	xyz(6.5644, 3.3555, 29.5739)
Luminance	0.0336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1C97 #94971C

analogous

#1C5797 #1F1C97 #5C1C97

triadic

#1F1C97 #971F1C #1C971F

tetradic

#1F1C97 #971C57 #94971C #1C975C

square

#1F1C97 #971C57 #94971C #1C975C

split-complementary

#1F1C97 #975C1C #57971C

monochromatic

#0A0930 #141263 #1F1C97 #2A26CB #534FDE

Accessibility & contrast

On white

12.57

#1F1C97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1F1C97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1C97

12.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1C97	#FFFFFF	#000000	##FFFFFF
##1F1C97	1.00	12.57	1.67	12.57
#FFFFFF	12.57	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.57	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: #1f1c97;
/* rgb */ color: rgb(31, 28, 151);
/* oklch */ color: oklch(34.2% 0.188 271.5);

Tailwind

colors: {
  custom: {
    50: '#725bb7',
    500: '#1f1c97',
    950: '#000000',
  },
}

SCSS

$custom: #1f1c97;
$custom-light: #725bb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1c97",
  "rgb": {
    "r": 31,
    "g": 28,
    "b": 151
  },
  "hsl": {
    "h": 241.463,
    "s": 68.715,
    "l": 35.098
  },
  "oklch": {
    "l": 0.34164,
    "c": 0.18825,
    "h": 271.5
  },
  "luminance": 0.03356
}

Semantic roles & 50–950 ramp

primary

#1F1C97

secondary

#BEC14E

accent

#EC3CE7

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F1C97

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

Preview Lab → · Contrast checker → · Palette generator →