#1D228E#1D228E

#1D228E is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.8% C 0.172 H 270.7°. Best body text is #FFFFFF at 12.56:1 contrast (WCAG AA passes).

Color values

HEX	#1D228E
RGB	rgb(29, 34, 142)
HSL	hsl(237, 66%, 34%)
HSV	hsv(237, 80%, 56%)
CMYK	cmyk(79.6%, 76.1%, 0%, 44.3%)
CIE-LAB	lab(21.42, 37.33, -59.43)
CIE-LCH	lch(21.42, 70.18, 302.14°)
OKLab	oklab(33.83% 0.0022 -0.1721)
OKLCH	oklch(33.83% 0.172 270.7)
XYZ	xyz(5.9595, 3.3576, 25.9199)
Luminance	0.0336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D228E #8E891D

analogous

#1D5A8E #1D228E #501D8E

triadic

#1D228E #8E1D22 #228E1D

tetradic

#1D228E #8E1D5A #8E891D #1D8E50

square

#1D228E #8E1D5A #8E891D #1D8E50

split-complementary

#1D228E #8E501D #5A8E1D

monochromatic

#080A28 #13165B #1D228E #272EC1 #4B51DA

Accessibility & contrast

On white

12.56

#1D228E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1D228E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D228E

12.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D228E	#FFFFFF	#000000	##FFFFFF
##1D228E	1.00	12.56	1.67	12.56
#FFFFFF	12.56	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003991

Deuteranopia (green-blind)

#002E8C

Tritanopia (blue-blind)

#004256

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1d228e;
/* rgb */ color: rgb(29, 34, 142);
/* oklch */ color: oklch(33.8% 0.172 270.7);

Tailwind

colors: {
  custom: {
    50: '#6e5eb0',
    500: '#1d228e',
    950: '#000000',
  },
}

SCSS

$custom: #1d228e;
$custom-light: #6e5eb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d228e",
  "rgb": {
    "r": 29,
    "g": 34,
    "b": 142
  },
  "hsl": {
    "h": 237.345,
    "s": 66.082,
    "l": 33.529
  },
  "oklch": {
    "l": 0.33833,
    "c": 0.17211,
    "h": 270.7
  },
  "luminance": 0.03358
}

Semantic roles & 50–950 ramp

primary

#1D228E

secondary

#BDB84A

accent

#E13FE9

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1D228E

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

Preview Lab → · Contrast checker → · Palette generator →