#1F219E#1F219E

#1F219E is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.6% C 0.192 H 270.5°. Best body text is #FFFFFF at 11.87:1 contrast (WCAG AA passes).

Color values

HEX	#1F219E
RGB	rgb(31, 33, 158)
HSL	hsl(239, 67%, 37%)
HSV	hsv(239, 80%, 62%)
CMYK	cmyk(80.4%, 79.1%, 0%, 38%)
CIE-LAB	lab(23.16, 43.54, -66.42)
CIE-LCH	lch(23.16, 79.42, 303.25°)
OKLab	oklab(35.63% 0.0018 -0.1923)
OKLCH	oklch(35.63% 0.192 270.5)
XYZ	xyz(7.2784, 3.8468, 32.7000)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F219E #9E9C1F

analogous

#1F619E #1F219E #5D1F9E

triadic

#1F219E #9E1F21 #219E1F

tetradic

#1F219E #9E1F61 #9E9C1F #1F9E5D

square

#1F219E #9E1F61 #9E9C1F #1F9E5D

split-complementary

#1F219E #9E5D1F #619E1F

monochromatic

#0B0C38 #15166B #1F219E #292CD1 #595BDE

Accessibility & contrast

On white

11.87

#1F219E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1F219E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F219E

11.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F219E	#FFFFFF	#000000	##FFFFFF
##1F219E	1.00	11.87	1.77	11.87
#FFFFFF	11.87	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA2

Deuteranopia (green-blind)

#00319C

Tritanopia (blue-blind)

#00475F

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1f219e;
/* rgb */ color: rgb(31, 33, 158);
/* oklch */ color: oklch(35.6% 0.192 270.5);

Tailwind

colors: {
  custom: {
    50: '#735fbc',
    500: '#1f219e',
    950: '#000000',
  },
}

SCSS

$custom: #1f219e;
$custom-light: #735fbc;
$custom-dark: #000000;

JSON

{
  "hex": "#1f219e",
  "rgb": {
    "r": 31,
    "g": 33,
    "b": 158
  },
  "hsl": {
    "h": 239.055,
    "s": 67.196,
    "l": 37.059
  },
  "oklch": {
    "l": 0.35626,
    "c": 0.19235,
    "h": 270.5
  },
  "luminance": 0.03848
}

Semantic roles & 50–950 ramp

primary

#1F219E

secondary

#C2C156

accent

#E73EEA

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #1F219E

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

Preview Lab → · Contrast checker → · Palette generator →