#1F217D#1F217D

#1F217D is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.9% C 0.150 H 273.0°. Best body text is #FFFFFF at 13.36:1 contrast (WCAG AA passes).

Color values

HEX	#1F217D
RGB	rgb(31, 33, 125)
HSL	hsl(239, 60%, 31%)
HSV	hsv(239, 75%, 49%)
CMYK	cmyk(75.2%, 73.6%, 0%, 51%)
CIE-LAB	lab(19.47, 32.04, -51.95)
CIE-LCH	lch(19.47, 61.04, 301.66°)
OKLab	oklab(31.92% 0.0078 -0.1503)
OKLCH	oklch(31.92% 0.15 273)
XYZ	xyz(4.8094, 2.8592, 19.6965)
Luminance	0.0286 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F217D #7D7B1F

analogous

#1F507D #1F217D #4C1F7D

triadic

#1F217D #7D1F21 #217D1F

tetradic

#1F217D #7D1F50 #7D7B1F #1F7D4C

square

#1F217D #7D1F50 #7D7B1F #1F7D4C

split-complementary

#1F217D #7D4C1F #507D1F

monochromatic

#07071B #13144C #1F217D #2B2EAE #4548D1

Accessibility & contrast

On white

13.36

#1F217D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1F217D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F217D

13.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F217D	#FFFFFF	#000000	##FFFFFF
##1F217D	1.00	13.36	1.57	13.36
#FFFFFF	13.36	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003480

Deuteranopia (green-blind)

#002B7B

Tritanopia (blue-blind)

#003B4C

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1f217d;
/* rgb */ color: rgb(31, 33, 125);
/* oklch */ color: oklch(31.9% 0.150 273.0);

Tailwind

colors: {
  custom: {
    50: '#6b5da4',
    500: '#1f217d',
    950: '#000000',
  },
}

SCSS

$custom: #1f217d;
$custom-light: #6b5da4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f217d",
  "rgb": {
    "r": 31,
    "g": 33,
    "b": 125
  },
  "hsl": {
    "h": 238.723,
    "s": 60.256,
    "l": 30.588
  },
  "oklch": {
    "l": 0.31921,
    "c": 0.15049,
    "h": 273
  },
  "luminance": 0.0286
}

Semantic roles & 50–950 ramp

primary

#1F217D

secondary

#B0AE48

accent

#E044E3

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08040F

muted

#7A797F

Preview Lab

Preview with #1F217D

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

Preview Lab → · Contrast checker → · Palette generator →