#1F2C9F#1F2C9F

#1F2C9F is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.4% C 0.183 H 269.3°. Best body text is #FFFFFF at 10.94:1 contrast (WCAG AA passes).

Color values

HEX	#1F2C9F
RGB	rgb(31, 44, 159)
HSL	hsl(234, 67%, 37%)
HSV	hsv(234, 81%, 62%)
CMYK	cmyk(80.5%, 72.3%, 0%, 37.6%)
CIE-LAB	lab(25.55, 37.46, -63.08)
CIE-LCH	lch(25.55, 73.37, 300.71°)
OKLab	oklab(37.36% -0.0024 -0.1827)
OKLCH	oklch(37.36% 0.183 269.3)
XYZ	xyz(7.7216, 4.5950, 33.2741)
Luminance	0.0460 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2C9F #9F921F

analogous

#1F6C9F #1F2C9F #521F9F

triadic

#1F2C9F #9F1F2C #2C9F1F

tetradic

#1F2C9F #9F1F6C #9F921F #1F9F52

square

#1F2C9F #9F1F6C #9F921F #1F9F52

split-complementary

#1F2C9F #9F521F #6C9F1F

monochromatic

#0B1039 #151E6C #1F2C9F #293AD2 #5A67DF

Accessibility & contrast

On white

10.94

#1F2C9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#1F2C9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2C9F

10.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2C9F	#FFFFFF	#000000	##FFFFFF
##1F2C9F	1.00	10.94	1.92	10.94
#FFFFFF	10.94	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043A2

Deuteranopia (green-blind)

#00369D

Tritanopia (blue-blind)

#004D62

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1f2c9f;
/* rgb */ color: rgb(31, 44, 159);
/* oklch */ color: oklch(37.4% 0.183 269.3);

Tailwind

colors: {
  custom: {
    50: '#7366bd',
    500: '#1f2c9f',
    950: '#000000',
  },
}

SCSS

$custom: #1f2c9f;
$custom-light: #7366bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2c9f",
  "rgb": {
    "r": 31,
    "g": 44,
    "b": 159
  },
  "hsl": {
    "h": 233.906,
    "s": 67.368,
    "l": 37.255
  },
  "oklch": {
    "l": 0.37357,
    "c": 0.18275,
    "h": 269.3
  },
  "luminance": 0.04596
}

Semantic roles & 50–950 ramp

primary

#1F2C9F

secondary

#C3B857

accent

#D93EEA

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1F2C9F

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

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