#1F217A#1F217A

#1F217A is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.6% C 0.146 H 273.2°. Best body text is #FFFFFF at 13.49:1 contrast (WCAG AA passes).

Color values

HEX	#1F217A
RGB	rgb(31, 33, 122)
HSL	hsl(239, 59%, 30%)
HSV	hsv(239, 75%, 48%)
CMYK	cmyk(74.6%, 73%, 0%, 52.2%)
CIE-LAB	lab(19.16, 30.95, -50.56)
CIE-LCH	lch(19.16, 59.28, 301.47°)
OKLab	oklab(31.6% 0.0083 -0.1462)
OKLCH	oklch(31.6% 0.146 273.2)
XYZ	xyz(4.6206, 2.7837, 18.7024)
Luminance	0.0278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F217A #7A781F

analogous

#1F4F7A #1F217A #4A1F7A

triadic

#1F217A #7A1F21 #217A1F

tetradic

#1F217A #7A1F4F #7A781F #1F7A4A

square

#1F217A #7A1F4F #7A781F #1F7A4A

split-complementary

#1F217A #7A4A1F #4F7A1F

monochromatic

#060718 #131449 #1F217A #2B2EAB #4447CF

Accessibility & contrast

On white

13.49

#1F217A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1F217A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F217A

13.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F217A	#FFFFFF	#000000	##FFFFFF
##1F217A	1.00	13.49	1.56	13.49
#FFFFFF	13.49	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337D

Deuteranopia (green-blind)

#002A78

Tritanopia (blue-blind)

#003A4B

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1f217a;
/* rgb */ color: rgb(31, 33, 122);
/* oklch */ color: oklch(31.6% 0.146 273.2);

Tailwind

colors: {
  custom: {
    50: '#6a5da1',
    500: '#1f217a',
    950: '#000000',
  },
}

SCSS

$custom: #1f217a;
$custom-light: #6a5da1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f217a",
  "rgb": {
    "r": 31,
    "g": 33,
    "b": 122
  },
  "hsl": {
    "h": 238.681,
    "s": 59.477,
    "l": 30
  },
  "oklch": {
    "l": 0.316,
    "c": 0.14645,
    "h": 273.2
  },
  "luminance": 0.02784
}

Semantic roles & 50–950 ramp

primary

#1F217A

secondary

#ADAB47

accent

#DF45E3

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1F217A

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

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