#1F146D#1F146D

#1F146D is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.2% C 0.143 H 277.5°. Best body text is #FFFFFF at 15.23:1 contrast (WCAG AA passes).

Color values

HEX	#1F146D
RGB	rgb(31, 20, 109)
HSL	hsl(247, 69%, 25%)
HSV	hsv(247, 82%, 43%)
CMYK	cmyk(71.6%, 81.7%, 0%, 57.3%)
CIE-LAB	lab(14.93, 34.21, -49.14)
CIE-LCH	lch(14.93, 59.88, 304.84°)
OKLab	oklab(28.17% 0.0187 -0.142)
OKLCH	oklch(28.17% 0.143 277.5)
XYZ	xyz(3.5747, 1.8954, 14.6425)
Luminance	0.0190 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F146D #626D14

analogous

#14356D #1F146D #4C146D

triadic

#1F146D #6D1F14 #146D1F

tetradic

#1F146D #6D1435 #626D14 #146D4C

square

#1F146D #6D1435 #626D14 #146D4C

split-complementary

#1F146D #6D4C14 #356D14

monochromatic

#07051A #100B39 #1F146D #2E1DA1 #3C27D4

Accessibility & contrast

On white

15.23

#1F146D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#1F146D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F146D

15.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F146D	#FFFFFF	#000000	##FFFFFF
##1F146D	1.00	15.23	1.38	15.23
#FFFFFF	15.23	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296F

Deuteranopia (green-blind)

#00226B

Tritanopia (blue-blind)

#002F40

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1f146d;
/* rgb */ color: rgb(31, 20, 109);
/* oklch */ color: oklch(28.2% 0.143 277.5);

Tailwind

colors: {
  custom: {
    50: '#685498',
    500: '#1f146d',
    950: '#000000',
  },
}

SCSS

$custom: #1f146d;
$custom-light: #685498;
$custom-dark: #000000;

JSON

{
  "hex": "#1f146d",
  "rgb": {
    "r": 31,
    "g": 20,
    "b": 109
  },
  "hsl": {
    "h": 247.416,
    "s": 68.992,
    "l": 25.294
  },
  "oklch": {
    "l": 0.28171,
    "c": 0.14321,
    "h": 277.5
  },
  "luminance": 0.01896
}

Semantic roles & 50–950 ramp

primary

#1F146D

secondary

#97A439

accent

#EC3CD6

background

#F6F4F9

surface

#EBE8F2

border

#C6C4CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1F146D

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

Preview Lab → · Contrast checker → · Palette generator →