#1F2C8F#1F2C8F

#1F2C8F is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.7% C 0.162 H 269.8°. Best body text is #FFFFFF at 11.57:1 contrast (WCAG AA passes).

Color values

HEX	#1F2C8F
RGB	rgb(31, 44, 143)
HSL	hsl(233, 64%, 34%)
HSV	hsv(233, 78%, 56%)
CMYK	cmyk(78.3%, 69.2%, 0%, 43.9%)
CIE-LAB	lab(23.92, 31.59, -55.93)
CIE-LCH	lch(23.92, 64.24, 299.45°)
OKLab	oklab(35.69% -0.0007 -0.1619)
OKLCH	oklch(35.69% 0.162 269.8)
XYZ	xyz(6.4220, 4.0751, 26.4294)
Luminance	0.0408 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2C8F #8F821F

analogous

#1F648F #1F2C8F #4A1F8F

triadic

#1F2C8F #8F1F2C #2C8F1F

tetradic

#1F2C8F #8F1F64 #8F821F #1F8F4A

square

#1F2C8F #8F1F64 #8F821F #1F8F4A

split-complementary

#1F2C8F #8F4A1F #648F1F

monochromatic

#090D2A #141D5D #1F2C8F #2A3BC1 #4F5FD9

Accessibility & contrast

On white

11.57

#1F2C8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1F2C8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2C8F

11.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2C8F	#FFFFFF	#000000	##FFFFFF
##1F2C8F	1.00	11.57	1.82	11.57
#FFFFFF	11.57	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E92

Deuteranopia (green-blind)

#00348D

Tritanopia (blue-blind)

#004759

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1f2c8f;
/* rgb */ color: rgb(31, 44, 143);
/* oklch */ color: oklch(35.7% 0.162 269.8);

Tailwind

colors: {
  custom: {
    50: '#6e65b1',
    500: '#1f2c8f',
    950: '#000000',
  },
}

SCSS

$custom: #1f2c8f;
$custom-light: #6e65b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2c8f",
  "rgb": {
    "r": 31,
    "g": 44,
    "b": 143
  },
  "hsl": {
    "h": 233.036,
    "s": 64.368,
    "l": 34.118
  },
  "oklch": {
    "l": 0.35688,
    "c": 0.1619,
    "h": 269.8
  },
  "luminance": 0.04076
}

Semantic roles & 50–950 ramp

primary

#1F2C8F

secondary

#BCAF4E

accent

#D440E7

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080511

muted

#7B7A80

Preview Lab

Preview with #1F2C8F

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

Preview Lab → · Contrast checker → · Palette generator →