#1D20B3#1D20B3

#1D20B3 is a dark, highly saturated blue. Relative luminance 0.045; OKLCH L 37.9% C 0.218 H 268.9°. Best body text is #FFFFFF at 11.00:1 contrast (WCAG AA passes).

Color values

HEX	#1D20B3
RGB	rgb(29, 32, 179)
HSL	hsl(239, 72%, 41%)
HSV	hsv(239, 84%, 70%)
CMYK	cmyk(83.8%, 82.1%, 0%, 29.8%)
CIE-LAB	lab(25.41, 50.74, -75.38)
CIE-LCH	lch(25.41, 90.87, 303.95°)
OKLab	oklab(37.9% -0.0041 -0.2183)
OKLCH	oklch(37.9% 0.218 268.9)
XYZ	xyz(9.1571, 4.5478, 43.0343)
Luminance	0.0455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D20B3 #B3B01D

analogous

#1D6BB3 #1D20B3 #651DB3

triadic

#1D20B3 #B31D20 #20B31D

tetradic

#1D20B3 #B31D6B #B3B01D #1DB365

square

#1D20B3 #B31D6B #B3B01D #1DB365

split-complementary

#1D20B3 #B3651D #6BB31D

monochromatic

#0C0D4A #14177E #1D20B3 #3033DD #6467E6

Accessibility & contrast

On white

11.00

#1D20B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1D20B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D20B3

11.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D20B3	#FFFFFF	#000000	##FFFFFF
##1D20B3	1.00	11.00	1.91	11.00
#FFFFFF	11.00	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044B7

Deuteranopia (green-blind)

#0034B1

Tritanopia (blue-blind)

#004F6B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1d20b3;
/* rgb */ color: rgb(29, 32, 179);
/* oklch */ color: oklch(37.9% 0.218 268.9);

Tailwind

colors: {
  custom: {
    50: '#7860cb',
    500: '#1d20b3',
    950: '#000000',
  },
}

SCSS

$custom: #1d20b3;
$custom-light: #7860cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1d20b3",
  "rgb": {
    "r": 29,
    "g": 32,
    "b": 179
  },
  "hsl": {
    "h": 238.8,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.37895,
    "c": 0.21835,
    "h": 268.9
  },
  "luminance": 0.04549
}

Semantic roles & 50–950 ramp

primary

#1D20B3

secondary

#CBC961

accent

#EB39EF

background

#F8F5FC

surface

#EFEAF9

border

#CAC6D2

text

#0B0514

muted

#7C7982

Preview Lab

Preview with #1D20B3

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

Preview Lab → · Contrast checker → · Palette generator →