#1F2C9A#1F2C9A

#1F2C9A is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.8% C 0.176 H 269.4°. Best body text is #FFFFFF at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#1F2C9A
RGB	rgb(31, 44, 154)
HSL	hsl(234, 66%, 36%)
HSV	hsv(234, 80%, 60%)
CMYK	cmyk(79.9%, 71.4%, 0%, 39.6%)
CIE-LAB	lab(25.03, 35.65, -60.88)
CIE-LCH	lch(25.03, 70.55, 300.35°)
OKLab	oklab(36.83% -0.0018 -0.1763)
OKLCH	oklch(36.83% 0.176 269.4)
XYZ	xyz(7.2965, 4.4249, 31.0351)
Luminance	0.0443 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2C9A #9A8D1F

analogous

#1F6A9A #1F2C9A #501F9A

triadic

#1F2C9A #9A1F2C #2C9A1F

tetradic

#1F2C9A #9A1F6A #9A8D1F #1F9A50

square

#1F2C9A #9A1F6A #9A8D1F #1F9A50

split-complementary

#1F2C9A #9A501F #6A9A1F

monochromatic

#0A0F34 #151D67 #1F2C9A #293BCD #5665DD

Accessibility & contrast

On white

11.14

#1F2C9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#1F2C9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2C9A

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2C9A	#FFFFFF	#000000	##FFFFFF
##1F2C9A	1.00	11.14	1.89	11.14
#FFFFFF	11.14	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00419D

Deuteranopia (green-blind)

#003598

Tritanopia (blue-blind)

#004B5F

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1f2c9a;
/* rgb */ color: rgb(31, 44, 154);
/* oklch */ color: oklch(36.8% 0.176 269.4);

Tailwind

colors: {
  custom: {
    50: '#7165b9',
    500: '#1f2c9a',
    950: '#000000',
  },
}

SCSS

$custom: #1f2c9a;
$custom-light: #7165b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2c9a",
  "rgb": {
    "r": 31,
    "g": 44,
    "b": 154
  },
  "hsl": {
    "h": 233.659,
    "s": 66.486,
    "l": 36.275
  },
  "oklch": {
    "l": 0.36828,
    "c": 0.17634,
    "h": 269.4
  },
  "luminance": 0.04426
}

Semantic roles & 50–950 ramp

primary

#1F2C9A

secondary

#C1B554

accent

#D73EE9

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1F2C9A

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

Preview Lab → · Contrast checker → · Palette generator →