#1F1380#1F1380

#1F1380 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.3% C 0.168 H 274.6°. Best body text is #FFFFFF at 14.35:1 contrast (WCAG AA passes).

Color values

HEX	#1F1380
RGB	rgb(31, 19, 128)
HSL	hsl(247, 74%, 29%)
HSV	hsv(247, 85%, 50%)
CMYK	cmyk(75.8%, 85.2%, 0%, 49.8%)
CIE-LAB	lab(17.06, 40.93, -57.85)
CIE-LCH	lch(17.06, 70.86, 305.28°)
OKLab	oklab(30.33% 0.0136 -0.1672)
OKLCH	oklch(30.33% 0.168 274.6)
XYZ	xyz(4.6929, 2.3151, 20.6174)
Luminance	0.0232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1380 #748013

analogous

#133E80 #1F1380 #561380

triadic

#1F1380 #801F13 #13801F

tetradic

#1F1380 #80133E #748013 #138056

square

#1F1380 #80133E #748013 #138056

split-complementary

#1F1380 #805613 #3E8013

monochromatic

#06041B #120B4B #1F1380 #2C1BB5 #412DE0

Accessibility & contrast

On white

14.35

#1F1380 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#1F1380 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1380

14.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1380	#FFFFFF	#000000	##FFFFFF
##1F1380	1.00	14.35	1.46	14.35
#FFFFFF	14.35	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F83

Deuteranopia (green-blind)

#00257E

Tritanopia (blue-blind)

#00364B

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1f1380;
/* rgb */ color: rgb(31, 19, 128);
/* oklch */ color: oklch(30.3% 0.168 274.6);

Tailwind

colors: {
  custom: {
    50: '#6d55a6',
    500: '#1f1380',
    950: '#000000',
  },
}

SCSS

$custom: #1f1380;
$custom-light: #6d55a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1380",
  "rgb": {
    "r": 31,
    "g": 19,
    "b": 128
  },
  "hsl": {
    "h": 246.606,
    "s": 74.15,
    "l": 28.824
  },
  "oklch": {
    "l": 0.30326,
    "c": 0.1678,
    "h": 274.6
  },
  "luminance": 0.02316
}

Semantic roles & 50–950 ramp

primary

#1F1380

secondary

#A8B539

accent

#F137DC

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1F1380

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

Preview Lab → · Contrast checker → · Palette generator →