#1F249D#1F249D

#1F249D is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.9% C 0.188 H 270.3°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#1F249D
RGB	rgb(31, 36, 157)
HSL	hsl(238, 67%, 37%)
HSV	hsv(238, 80%, 62%)
CMYK	cmyk(80.3%, 77.1%, 0%, 38.4%)
CIE-LAB	lab(23.63, 41.53, -65.03)
CIE-LCH	lch(23.63, 77.16, 302.56°)
OKLab	oklab(35.92% 0.001 -0.1883)
OKLCH	oklch(35.92% 0.188 270.3)
XYZ	xyz(7.2797, 3.9866, 32.2776)
Luminance	0.0399 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F249D #9D981F

analogous

#1F639D #1F249D #591F9D

triadic

#1F249D #9D1F24 #249D1F

tetradic

#1F249D #9D1F63 #9D981F #1F9D59

square

#1F249D #9D1F63 #9D981F #1F9D59

split-complementary

#1F249D #9D591F #639D1F

monochromatic

#0B0D37 #15186A #1F249D #2930D0 #585EDE

Accessibility & contrast

On white

11.68

#1F249D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1F249D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F249D

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F249D	#FFFFFF	#000000	##FFFFFF
##1F249D	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA0

Deuteranopia (green-blind)

#00329B

Tritanopia (blue-blind)

#00485F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1f249d;
/* rgb */ color: rgb(31, 36, 157);
/* oklch */ color: oklch(35.9% 0.188 270.3);

Tailwind

colors: {
  custom: {
    50: '#7360bb',
    500: '#1f249d',
    950: '#000000',
  },
}

SCSS

$custom: #1f249d;
$custom-light: #7360bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f249d",
  "rgb": {
    "r": 31,
    "g": 36,
    "b": 157
  },
  "hsl": {
    "h": 237.619,
    "s": 67.021,
    "l": 36.863
  },
  "oklch": {
    "l": 0.35922,
    "c": 0.18835,
    "h": 270.3
  },
  "luminance": 0.03987
}

Semantic roles & 50–950 ramp

primary

#1F249D

secondary

#C2BE56

accent

#E33EEA

background

#F7F5FB

surface

#EEEAF6

border

#C9C6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #1F249D

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

Preview Lab → · Contrast checker → · Palette generator →