#1F2C8D#1F2C8D

#1F2C8D is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.5% C 0.159 H 269.8°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#1F2C8D
RGB	rgb(31, 44, 141)
HSL	hsl(233, 64%, 34%)
HSV	hsv(233, 78%, 55%)
CMYK	cmyk(78%, 68.8%, 0%, 44.7%)
CIE-LAB	lab(23.72, 30.84, -55.02)
CIE-LCH	lch(23.72, 63.07, 299.27°)
OKLab	oklab(35.49% -0.0005 -0.1592)
OKLCH	oklch(35.49% 0.159 269.8)
XYZ	xyz(6.2718, 4.0151, 25.6386)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2C8D #8D801F

analogous

#1F638D #1F2C8D #491F8D

triadic

#1F2C8D #8D1F2C #2C8D1F

tetradic

#1F2C8D #8D1F63 #8D801F #1F8D49

square

#1F2C8D #8D1F63 #8D801F #1F8D49

split-complementary

#1F2C8D #8D491F #638D1F

monochromatic

#090D29 #141C5B #1F2C8D #2A3CBF #4E5FD8

Accessibility & contrast

On white

11.65

#1F2C8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1F2C8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2C8D

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2C8D	#FFFFFF	#000000	##FFFFFF
##1F2C8D	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E90

Deuteranopia (green-blind)

#00338B

Tritanopia (blue-blind)

#004658

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1f2c8d;
/* rgb */ color: rgb(31, 44, 141);
/* oklch */ color: oklch(35.5% 0.159 269.8);

Tailwind

colors: {
  custom: {
    50: '#6e65af',
    500: '#1f2c8d',
    950: '#000000',
  },
}

SCSS

$custom: #1f2c8d;
$custom-light: #6e65af;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2c8d",
  "rgb": {
    "r": 31,
    "g": 44,
    "b": 141
  },
  "hsl": {
    "h": 232.909,
    "s": 63.953,
    "l": 33.725
  },
  "oklch": {
    "l": 0.35485,
    "c": 0.15922,
    "h": 269.8
  },
  "luminance": 0.04016
}

Semantic roles & 50–950 ramp

primary

#1F2C8D

secondary

#BBAE4D

accent

#D341E7

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #1F2C8D

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

Preview Lab → · Contrast checker → · Palette generator →