#1F217C#1F217C

#1F217C is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.8% C 0.149 H 273.1°. Best body text is #FFFFFF at 13.40:1 contrast (WCAG AA passes).

Color values

HEX	#1F217C
RGB	rgb(31, 33, 124)
HSL	hsl(239, 60%, 30%)
HSV	hsv(239, 75%, 49%)
CMYK	cmyk(75%, 73.4%, 0%, 51.4%)
CIE-LAB	lab(19.37, 31.68, -51.49)
CIE-LCH	lch(19.37, 60.46, 301.60°)
OKLab	oklab(31.81% 0.008 -0.1489)
OKLCH	oklch(31.81% 0.149 273.1)
XYZ	xyz(4.7458, 2.8338, 19.3617)
Luminance	0.0283 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F217C #7C7A1F

analogous

#1F4F7C #1F217C #4C1F7C

triadic

#1F217C #7C1F21 #217C1F

tetradic

#1F217C #7C1F4F #7C7A1F #1F7C4C

square

#1F217C #7C1F4F #7C7A1F #1F7C4C

split-complementary

#1F217C #7C4C1F #4F7C1F

monochromatic

#07071A #13144B #1F217C #2B2EAD #4548D0

Accessibility & contrast

On white

13.40

#1F217C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1F217C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F217C

13.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F217C	#FFFFFF	#000000	##FFFFFF
##1F217C	1.00	13.40	1.57	13.40
#FFFFFF	13.40	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337F

Deuteranopia (green-blind)

#002A7A

Tritanopia (blue-blind)

#003A4C

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1f217c;
/* rgb */ color: rgb(31, 33, 124);
/* oklch */ color: oklch(31.8% 0.149 273.1);

Tailwind

colors: {
  custom: {
    50: '#6a5da3',
    500: '#1f217c',
    950: '#000000',
  },
}

SCSS

$custom: #1f217c;
$custom-light: #6a5da3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f217c",
  "rgb": {
    "r": 31,
    "g": 33,
    "b": 124
  },
  "hsl": {
    "h": 238.71,
    "s": 60,
    "l": 30.392
  },
  "oklch": {
    "l": 0.31813,
    "c": 0.14915,
    "h": 273.1
  },
  "luminance": 0.02834
}

Semantic roles & 50–950 ramp

primary

#1F217C

secondary

#AFAD48

accent

#E045E3

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08040F

muted

#7A797F

Preview Lab

Preview with #1F217C

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

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