#1F248D#1F248D

#1F248D is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.1% C 0.168 H 271.3°. Best body text is #FFFFFF at 12.39:1 contrast (WCAG AA passes).

Color values

HEX	#1F248D
RGB	rgb(31, 36, 141)
HSL	hsl(237, 64%, 34%)
HSV	hsv(237, 78%, 55%)
CMYK	cmyk(78%, 74.5%, 0%, 44.7%)
CIE-LAB	lab(21.86, 35.94, -58.09)
CIE-LCH	lch(21.86, 68.31, 301.74°)
OKLab	oklab(34.14% 0.0037 -0.1682)
OKLCH	oklch(34.14% 0.168 271.3)
XYZ	xyz(6.0020, 3.4755, 25.5487)
Luminance	0.0348 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F248D #8D881F

analogous

#1F5B8D #1F248D #511F8D

triadic

#1F248D #8D1F24 #248D1F

tetradic

#1F248D #8D1F5B #8D881F #1F8D51

square

#1F248D #8D1F5B #8D881F #1F8D51

split-complementary

#1F248D #8D511F #5B8D1F

monochromatic

#090A29 #14175B #1F248D #2A31BF #4E55D8

Accessibility & contrast

On white

12.39

#1F248D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1F248D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F248D

12.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F248D	#FFFFFF	#000000	##FFFFFF
##1F248D	1.00	12.39	1.70	12.39
#FFFFFF	12.39	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A90

Deuteranopia (green-blind)

#002F8B

Tritanopia (blue-blind)

#004256

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f248d;
/* rgb */ color: rgb(31, 36, 141);
/* oklch */ color: oklch(34.1% 0.168 271.3);

Tailwind

colors: {
  custom: {
    50: '#6f60af',
    500: '#1f248d',
    950: '#000000',
  },
}

SCSS

$custom: #1f248d;
$custom-light: #6f60af;
$custom-dark: #000000;

JSON

{
  "hex": "#1f248d",
  "rgb": {
    "r": 31,
    "g": 36,
    "b": 141
  },
  "hsl": {
    "h": 237.273,
    "s": 63.953,
    "l": 33.725
  },
  "oklch": {
    "l": 0.34139,
    "c": 0.16821,
    "h": 271.3
  },
  "luminance": 0.03476
}

Semantic roles & 50–950 ramp

primary

#1F248D

secondary

#BBB64D

accent

#DF41E7

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090511

muted

#7B7980

Preview Lab

Preview with #1F248D

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

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