#1F218E#1F218E

#1F218E is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.8% C 0.173 H 271.6°. Best body text is #FFFFFF at 12.60:1 contrast (WCAG AA passes).

Color values

HEX	#1F218E
RGB	rgb(31, 33, 142)
HSL	hsl(239, 64%, 34%)
HSV	hsv(239, 78%, 56%)
CMYK	cmyk(78.2%, 76.8%, 0%, 44.3%)
CIE-LAB	lab(21.32, 38.09, -59.59)
CIE-LCH	lch(21.32, 70.72, 302.59°)
OKLab	oklab(33.79% 0.0049 -0.1725)
OKLCH	oklch(33.79% 0.173 271.6)
XYZ	xyz(5.9898, 3.3314, 25.9133)
Luminance	0.0333 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F218E #8E8C1F

analogous

#1F598E #1F218E #551F8E

triadic

#1F218E #8E1F21 #218E1F

tetradic

#1F218E #8E1F59 #8E8C1F #1F8E55

square

#1F218E #8E1F59 #8E8C1F #1F8E55

split-complementary

#1F218E #8E551F #598E1F

monochromatic

#090A2A #14155C #1F218E #2A2DC0 #4F51D9

Accessibility & contrast

On white

12.60

#1F218E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1F218E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F218E

12.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F218E	#FFFFFF	#000000	##FFFFFF
##1F218E	1.00	12.60	1.67	12.60
#FFFFFF	12.60	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003991

Deuteranopia (green-blind)

#002E8C

Tritanopia (blue-blind)

#004156

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1f218e;
/* rgb */ color: rgb(31, 33, 142);
/* oklch */ color: oklch(33.8% 0.173 271.6);

Tailwind

colors: {
  custom: {
    50: '#6f5eb0',
    500: '#1f218e',
    950: '#000000',
  },
}

SCSS

$custom: #1f218e;
$custom-light: #6f5eb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f218e",
  "rgb": {
    "r": 31,
    "g": 33,
    "b": 142
  },
  "hsl": {
    "h": 238.919,
    "s": 64.162,
    "l": 33.922
  },
  "oklch": {
    "l": 0.33795,
    "c": 0.17258,
    "h": 271.6
  },
  "luminance": 0.03332
}

Semantic roles & 50–950 ramp

primary

#1F218E

secondary

#BBB94D

accent

#E441E7

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F218E

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

Preview Lab → · Contrast checker → · Palette generator →