#1F217F#1F217F

#1F217F is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.1% C 0.153 H 272.8°. Best body text is #FFFFFF at 13.27:1 contrast (WCAG AA passes).

Color values

HEX	#1F217F
RGB	rgb(31, 33, 127)
HSL	hsl(239, 61%, 31%)
HSV	hsv(239, 76%, 50%)
CMYK	cmyk(75.6%, 74%, 0%, 50.2%)
CIE-LAB	lab(19.68, 32.77, -52.88)
CIE-LCH	lch(19.68, 62.21, 301.79°)
OKLab	oklab(32.14% 0.0075 -0.153)
OKLCH	oklch(32.14% 0.153 272.8)
XYZ	xyz(4.9384, 2.9108, 20.3761)
Luminance	0.0291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F217F #7F7D1F

analogous

#1F517F #1F217F #4D1F7F

triadic

#1F217F #7F1F21 #217F1F

tetradic

#1F217F #7F1F51 #7F7D1F #1F7F4D

square

#1F217F #7F1F51 #7F7D1F #1F7F4D

split-complementary

#1F217F #7F4D1F #517F1F

monochromatic

#07071D #13144E #1F217F #2B2EB0 #4649D2

Accessibility & contrast

On white

13.27

#1F217F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1F217F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F217F

13.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F217F	#FFFFFF	#000000	##FFFFFF
##1F217F	1.00	13.27	1.58	13.27
#FFFFFF	13.27	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003482

Deuteranopia (green-blind)

#002B7D

Tritanopia (blue-blind)

#003B4D

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1f217f;
/* rgb */ color: rgb(31, 33, 127);
/* oklch */ color: oklch(32.1% 0.153 272.8);

Tailwind

colors: {
  custom: {
    50: '#6b5da5',
    500: '#1f217f',
    950: '#000000',
  },
}

SCSS

$custom: #1f217f;
$custom-light: #6b5da5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f217f",
  "rgb": {
    "r": 31,
    "g": 33,
    "b": 127
  },
  "hsl": {
    "h": 238.75,
    "s": 60.759,
    "l": 30.98
  },
  "oklch": {
    "l": 0.32136,
    "c": 0.15315,
    "h": 272.8
  },
  "luminance": 0.02911
}

Semantic roles & 50–950 ramp

primary

#1F217F

secondary

#B2B048

accent

#E144E4

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08040F

muted

#7A797F

Preview Lab

Preview with #1F217F

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

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