#1F248C#1F248C

#1F248C is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.0% C 0.167 H 271.3°. Best body text is #FFFFFF at 12.43:1 contrast (WCAG AA passes).

Color values

HEX	#1F248C
RGB	rgb(31, 36, 140)
HSL	hsl(237, 64%, 34%)
HSV	hsv(237, 78%, 55%)
CMYK	cmyk(77.9%, 74.3%, 0%, 45.1%)
CIE-LAB	lab(21.75, 35.58, -57.64)
CIE-LCH	lch(21.75, 67.74, 301.68°)
OKLab	oklab(34.03% 0.0039 -0.1669)
OKLCH	oklch(34.03% 0.167 271.3)
XYZ	xyz(5.9280, 3.4459, 25.1586)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F248C #8C871F

analogous

#1F5A8C #1F248C #501F8C

triadic

#1F248C #8C1F24 #248C1F

tetradic

#1F248C #8C1F5A #8C871F #1F8C50

square

#1F248C #8C1F5A #8C871F #1F8C50

split-complementary

#1F248C #8C501F #5A8C1F

monochromatic

#090A28 #14175A #1F248C #2A31BE #4E54D8

Accessibility & contrast

On white

12.43

#1F248C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1F248C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F248C

12.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F248C	#FFFFFF	#000000	##FFFFFF
##1F248C	1.00	12.43	1.69	12.43
#FFFFFF	12.43	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398F

Deuteranopia (green-blind)

#002F8A

Tritanopia (blue-blind)

#004256

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f248c;
/* rgb */ color: rgb(31, 36, 140);
/* oklch */ color: oklch(34.0% 0.167 271.3);

Tailwind

colors: {
  custom: {
    50: '#6e60af',
    500: '#1f248c',
    950: '#000000',
  },
}

SCSS

$custom: #1f248c;
$custom-light: #6e60af;
$custom-dark: #000000;

JSON

{
  "hex": "#1f248c",
  "rgb": {
    "r": 31,
    "g": 36,
    "b": 140
  },
  "hsl": {
    "h": 237.248,
    "s": 63.743,
    "l": 33.529
  },
  "oklch": {
    "l": 0.3403,
    "c": 0.16692,
    "h": 271.3
  },
  "luminance": 0.03447
}

Semantic roles & 50–950 ramp

primary

#1F248C

secondary

#BBB54C

accent

#DF41E7

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#080510

muted

#7B797F

Preview Lab

Preview with #1F248C

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

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