#1F216B#1F216B

#1F216B is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.0% C 0.126 H 274.6°. Best body text is #FFFFFF at 14.11:1 contrast (WCAG AA passes).

Color values

HEX	#1F216B
RGB	rgb(31, 33, 107)
HSL	hsl(238, 55%, 27%)
HSV	hsv(238, 71%, 42%)
CMYK	cmyk(71%, 69.2%, 0%, 58%)
CIE-LAB	lab(17.65, 25.37, -43.37)
CIE-LCH	lch(17.65, 50.24, 300.33°)
OKLab	oklab(30.05% 0.0102 -0.1252)
OKLCH	oklch(30.05% 0.126 274.6)
XYZ	xyz(3.7619, 2.4402, 14.1798)
Luminance	0.0244 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F216B #6B691F

analogous

#1F476B #1F216B #431F6B

triadic

#1F216B #6B1F21 #216B1F

tetradic

#1F216B #6B1F47 #6B691F #1F6B43

square

#1F216B #6B1F47 #6B691F #1F6B43

split-complementary

#1F216B #6B431F #476B1F

monochromatic

#070718 #11123C #1F216B #2D309A #3D41C7

Accessibility & contrast

On white

14.11

#1F216B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#1F216B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F216B

14.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F216B	#FFFFFF	#000000	##FFFFFF
##1F216B	1.00	14.11	1.49	14.11
#FFFFFF	14.11	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F6D

Deuteranopia (green-blind)

#00286A

Tritanopia (blue-blind)

#003442

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1f216b;
/* rgb */ color: rgb(31, 33, 107);
/* oklch */ color: oklch(30.0% 0.126 274.6);

Tailwind

colors: {
  custom: {
    50: '#665c96',
    500: '#1f216b',
    950: '#000000',
  },
}

SCSS

$custom: #1f216b;
$custom-light: #665c96;
$custom-dark: #000000;

JSON

{
  "hex": "#1f216b",
  "rgb": {
    "r": 31,
    "g": 33,
    "b": 107
  },
  "hsl": {
    "h": 238.421,
    "s": 55.072,
    "l": 27.059
  },
  "oklch": {
    "l": 0.30048,
    "c": 0.12559,
    "h": 274.6
  },
  "luminance": 0.02441
}

Semantic roles & 50–950 ramp

primary

#1F216B

secondary

#9F9D47

accent

#DA49DE

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #1F216B

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

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