#1F1D97#1F1D97

#1F1D97 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.3% C 0.187 H 271.4°. Best body text is #FFFFFF at 12.49:1 contrast (WCAG AA passes).

Color values

HEX	#1F1D97
RGB	rgb(31, 29, 151)
HSL	hsl(241, 68%, 35%)
HSV	hsv(241, 81%, 59%)
CMYK	cmyk(79.5%, 80.8%, 0%, 40.8%)
CIE-LAB	lab(21.59, 43.35, -64.72)
CIE-LCH	lch(21.59, 77.90, 303.82°)
OKLab	oklab(34.29% 0.0045 -0.1873)
OKLCH	oklch(34.29% 0.187 271.4)
XYZ	xyz(6.5885, 3.4037, 29.5819)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1D97 #95971D

analogous

#1D5897 #1F1D97 #5C1D97

triadic

#1F1D97 #971F1D #1D971F

tetradic

#1F1D97 #971D58 #95971D #1D975C

square

#1F1D97 #971D58 #95971D #1D975C

split-complementary

#1F1D97 #975C1D #58971D

monochromatic

#0A0930 #141364 #1F1D97 #2A27CA #5351DE

Accessibility & contrast

On white

12.49

#1F1D97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1F1D97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1D97

12.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1D97	#FFFFFF	#000000	##FFFFFF
##1F1D97	1.00	12.49	1.68	12.49
#FFFFFF	12.49	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A9A

Deuteranopia (green-blind)

#002D95

Tritanopia (blue-blind)

#00435A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f1d97;
/* rgb */ color: rgb(31, 29, 151);
/* oklch */ color: oklch(34.3% 0.187 271.4);

Tailwind

colors: {
  custom: {
    50: '#725cb7',
    500: '#1f1d97',
    950: '#000000',
  },
}

SCSS

$custom: #1f1d97;
$custom-light: #725cb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1d97",
  "rgb": {
    "r": 31,
    "g": 29,
    "b": 151
  },
  "hsl": {
    "h": 240.984,
    "s": 67.778,
    "l": 35.294
  },
  "oklch": {
    "l": 0.34289,
    "c": 0.1874,
    "h": 271.4
  },
  "luminance": 0.03404
}

Semantic roles & 50–950 ramp

primary

#1F1D97

secondary

#BFC04F

accent

#EB3DE8

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F1D97

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

Preview Lab → · Contrast checker → · Palette generator →