#1F1D98#1F1D98

#1F1D98 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.4% C 0.189 H 271.3°. Best body text is #FFFFFF at 12.45:1 contrast (WCAG AA passes).

Color values

HEX	#1F1D98
RGB	rgb(31, 29, 152)
HSL	hsl(241, 68%, 35%)
HSV	hsv(241, 81%, 60%)
CMYK	cmyk(79.6%, 80.9%, 0%, 40.4%)
CIE-LAB	lab(21.71, 43.68, -65.14)
CIE-LCH	lch(21.71, 78.43, 303.85°)
OKLab	oklab(34.41% 0.0043 -0.1886)
OKLCH	oklch(34.41% 0.189 271.3)
XYZ	xyz(6.6700, 3.4363, 30.0114)
Luminance	0.0344 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1D98 #96981D

analogous

#1D5898 #1F1D98 #5D1D98

triadic

#1F1D98 #981F1D #1D981F

tetradic

#1F1D98 #981D58 #96981D #1D985D

square

#1F1D98 #981D58 #96981D #1D985D

split-complementary

#1F1D98 #985D1D #58981D

monochromatic

#0A0931 #151365 #1F1D98 #2927CB #5452DE

Accessibility & contrast

On white

12.45

#1F1D98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1F1D98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1D98

12.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1D98	#FFFFFF	#000000	##FFFFFF
##1F1D98	1.00	12.45	1.69	12.45
#FFFFFF	12.45	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A9B

Deuteranopia (green-blind)

#002E96

Tritanopia (blue-blind)

#00435B

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f1d98;
/* rgb */ color: rgb(31, 29, 152);
/* oklch */ color: oklch(34.4% 0.189 271.3);

Tailwind

colors: {
  custom: {
    50: '#725cb8',
    500: '#1f1d98',
    950: '#000000',
  },
}

SCSS

$custom: #1f1d98;
$custom-light: #725cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1d98",
  "rgb": {
    "r": 31,
    "g": 29,
    "b": 152
  },
  "hsl": {
    "h": 240.976,
    "s": 67.956,
    "l": 35.49
  },
  "oklch": {
    "l": 0.34407,
    "c": 0.18861,
    "h": 271.3
  },
  "luminance": 0.03437
}

Semantic roles & 50–950 ramp

primary

#1F1D98

secondary

#BFC150

accent

#EB3DE8

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F1D98

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

Preview Lab → · Contrast checker → · Palette generator →