#1F219F#1F219F

#1F219F is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.7% C 0.194 H 270.5°. Best body text is #FFFFFF at 11.82:1 contrast (WCAG AA passes).

Color values

HEX	#1F219F
RGB	rgb(31, 33, 159)
HSL	hsl(239, 67%, 37%)
HSV	hsv(239, 81%, 62%)
CMYK	cmyk(80.5%, 79.2%, 0%, 37.6%)
CIE-LAB	lab(23.28, 43.87, -66.84)
CIE-LCH	lch(23.28, 79.95, 303.28°)
OKLab	oklab(35.74% 0.0016 -0.1935)
OKLCH	oklch(35.74% 0.194 270.5)
XYZ	xyz(7.3648, 3.8814, 33.1552)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F219F #9F9D1F

analogous

#1F619F #1F219F #5D1F9F

triadic

#1F219F #9F1F21 #219F1F

tetradic

#1F219F #9F1F61 #9F9D1F #1F9F5D

square

#1F219F #9F1F61 #9F9D1F #1F9F5D

split-complementary

#1F219F #9F5D1F #619F1F

monochromatic

#0B0C39 #15166C #1F219F #292CD2 #5A5CDF

Accessibility & contrast

On white

11.82

#1F219F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1F219F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F219F

11.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F219F	#FFFFFF	#000000	##FFFFFF
##1F219F	1.00	11.82	1.78	11.82
#FFFFFF	11.82	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA3

Deuteranopia (green-blind)

#00319D

Tritanopia (blue-blind)

#004860

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1f219f;
/* rgb */ color: rgb(31, 33, 159);
/* oklch */ color: oklch(35.7% 0.194 270.5);

Tailwind

colors: {
  custom: {
    50: '#745fbd',
    500: '#1f219f',
    950: '#000000',
  },
}

SCSS

$custom: #1f219f;
$custom-light: #745fbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1f219f",
  "rgb": {
    "r": 31,
    "g": 33,
    "b": 159
  },
  "hsl": {
    "h": 239.063,
    "s": 67.368,
    "l": 37.255
  },
  "oklch": {
    "l": 0.35742,
    "c": 0.19356,
    "h": 270.5
  },
  "luminance": 0.03882
}

Semantic roles & 50–950 ramp

primary

#1F219F

secondary

#C3C157

accent

#E83EEA

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #1F219F

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

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