#1F20A8#1F20A8

#1F20A8 is a dark, highly saturated blue. Relative luminance 0.042; OKLCH L 36.7% C 0.205 H 270.0°. Best body text is #FFFFFF at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#1F20A8
RGB	rgb(31, 32, 168)
HSL	hsl(240, 69%, 39%)
HSV	hsv(240, 82%, 66%)
CMYK	cmyk(81.5%, 81%, 0%, 34.1%)
CIE-LAB	lab(24.16, 47.34, -70.83)
CIE-LCH	lch(24.16, 85.20, 303.76°)
OKLab	oklab(36.67% 0.0001 -0.2051)
OKLCH	oklch(36.67% 0.205 270)
XYZ	xyz(8.1471, 4.1505, 37.4099)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F20A8 #A8A71F

analogous

#1F65A8 #1F20A8 #631FA8

triadic

#1F20A8 #A81F20 #20A81F

tetradic

#1F20A8 #A81F65 #A8A71F #1FA863

square

#1F20A8 #A81F65 #A8A71F #1FA863

split-complementary

#1F20A8 #A8631F #65A81F

monochromatic

#0C0C41 #151674 #1F20A8 #2C2DD8 #6061E2

Accessibility & contrast

On white

11.47

#1F20A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#1F20A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F20A8

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F20A8	#FFFFFF	#000000	##FFFFFF
##1F20A8	1.00	11.47	1.83	11.47
#FFFFFF	11.47	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040AC

Deuteranopia (green-blind)

#0032A6

Tritanopia (blue-blind)

#004B65

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1f20a8;
/* rgb */ color: rgb(31, 32, 168);
/* oklch */ color: oklch(36.7% 0.205 270.0);

Tailwind

colors: {
  custom: {
    50: '#765fc3',
    500: '#1f20a8',
    950: '#000000',
  },
}

SCSS

$custom: #1f20a8;
$custom-light: #765fc3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f20a8",
  "rgb": {
    "r": 31,
    "g": 32,
    "b": 168
  },
  "hsl": {
    "h": 239.562,
    "s": 68.844,
    "l": 39.02
  },
  "oklch": {
    "l": 0.36672,
    "c": 0.20511,
    "h": 270
  },
  "luminance": 0.04151
}

Semantic roles & 50–950 ramp

primary

#1F20A8

secondary

#C6C55D

accent

#EA3CEC

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0A0513

muted

#7C7982

Preview Lab

Preview with #1F20A8

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

Preview Lab → · Contrast checker → · Palette generator →