#1F145D#1F145D

#1F145D is a dark, vivid blue. Relative luminance 0.016; OKLCH L 26.4% C 0.122 H 280.8°. Best body text is #FFFFFF at 15.95:1 contrast (WCAG AA passes).

Color values

HEX	#1F145D
RGB	rgb(31, 20, 93)
HSL	hsl(249, 65%, 22%)
HSV	hsv(249, 78%, 36%)
CMYK	cmyk(66.7%, 78.5%, 0%, 63.5%)
CIE-LAB	lab(13.12, 28.74, -41.55)
CIE-LCH	lch(13.12, 50.52, 304.67°)
OKLab	oklab(26.36% 0.0229 -0.1198)
OKLCH	oklch(26.36% 0.122 280.8)
XYZ	xyz(2.7904, 1.5817, 10.5121)
Luminance	0.0158 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F145D #525D14

analogous

#142E5D #1F145D #44145D

triadic

#1F145D #5D1F14 #145D1F

tetradic

#1F145D #5D142E #525D14 #145D44

square

#1F145D #5D142E #525D14 #145D44

split-complementary

#1F145D #5D4414 #2E5D14

monochromatic

#080519 #0E092B #1F145D #301F8F #412AC2

Accessibility & contrast

On white

15.95

#1F145D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#1F145D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F145D

15.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F145D	#FFFFFF	#000000	##FFFFFF
##1F145D	1.00	15.95	1.32	15.95
#FFFFFF	15.95	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245F

Deuteranopia (green-blind)

#001F5C

Tritanopia (blue-blind)

#002837

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #1f145d;
/* rgb */ color: rgb(31, 20, 93);
/* oklch */ color: oklch(26.4% 0.122 280.8);

Tailwind

colors: {
  custom: {
    50: '#64538c',
    500: '#1f145d',
    950: '#000000',
  },
}

SCSS

$custom: #1f145d;
$custom-light: #64538c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f145d",
  "rgb": {
    "r": 31,
    "g": 20,
    "b": 93
  },
  "hsl": {
    "h": 249.041,
    "s": 64.602,
    "l": 22.157
  },
  "oklch": {
    "l": 0.26357,
    "c": 0.12201,
    "h": 280.8
  },
  "luminance": 0.01582
}

Semantic roles & 50–950 ramp

primary

#1F145D

secondary

#879538

accent

#E840CE

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1F145D

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

Preview Lab → · Contrast checker → · Palette generator →