#1F20AA#1F20AA

#1F20AA is a dark, highly saturated blue. Relative luminance 0.042; OKLCH L 36.9% C 0.207 H 269.9°. Best body text is #FFFFFF at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#1F20AA
RGB	rgb(31, 32, 170)
HSL	hsl(240, 69%, 39%)
HSV	hsv(240, 82%, 67%)
CMYK	cmyk(81.8%, 81.2%, 0%, 33.3%)
CIE-LAB	lab(24.40, 47.98, -71.64)
CIE-LCH	lch(24.40, 86.23, 303.81°)
OKLab	oklab(36.91% -0.0003 -0.2074)
OKLCH	oklch(36.91% 0.207 269.9)
XYZ	xyz(8.3348, 4.2256, 38.3988)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F20AA #AAA91F

analogous

#1F66AA #1F20AA #631FAA

triadic

#1F20AA #AA1F20 #20AA1F

tetradic

#1F20AA #AA1F66 #AAA91F #1FAA63

square

#1F20AA #AA1F66 #AAA91F #1FAA63

split-complementary

#1F20AA #AA631F #66AA1F

monochromatic

#0C0D42 #161676 #1F20AA #2D2FD9 #6162E2

Accessibility & contrast

On white

11.38

#1F20AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1F20AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F20AA

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F20AA	#FFFFFF	#000000	##FFFFFF
##1F20AA	1.00	11.38	1.85	11.38
#FFFFFF	11.38	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041AE

Deuteranopia (green-blind)

#0033A8

Tritanopia (blue-blind)

#004C66

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1f20aa;
/* rgb */ color: rgb(31, 32, 170);
/* oklch */ color: oklch(36.9% 0.207 269.9);

Tailwind

colors: {
  custom: {
    50: '#775fc5',
    500: '#1f20aa',
    950: '#000000',
  },
}

SCSS

$custom: #1f20aa;
$custom-light: #775fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f20aa",
  "rgb": {
    "r": 31,
    "g": 32,
    "b": 170
  },
  "hsl": {
    "h": 239.568,
    "s": 69.154,
    "l": 39.412
  },
  "oklch": {
    "l": 0.36909,
    "c": 0.20744,
    "h": 269.9
  },
  "luminance": 0.04227
}

Semantic roles & 50–950 ramp

primary

#1F20AA

secondary

#C7C65E

accent

#EB3CEC

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #1F20AA

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

Preview Lab → · Contrast checker → · Palette generator →