#1F2F8D#1F2F8D

#1F2F8D is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.0% C 0.156 H 269.2°. Best body text is #FFFFFF at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F8D
RGB	rgb(31, 47, 141)
HSL	hsl(231, 64%, 34%)
HSV	hsv(231, 78%, 55%)
CMYK	cmyk(78%, 66.7%, 0%, 44.7%)
CIE-LAB	lab(24.47, 28.84, -53.79)
CIE-LCH	lch(24.47, 61.03, 298.20°)
OKLab	oklab(36.03% -0.0023 -0.1556)
OKLCH	oklch(36.03% 0.156 269.2)
XYZ	xyz(6.3877, 4.2467, 25.6772)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F8D #8D7D1F

analogous

#1F668D #1F2F8D #461F8D

triadic

#1F2F8D #8D1F2F #2F8D1F

tetradic

#1F2F8D #8D1F66 #8D7D1F #1F8D46

square

#1F2F8D #8D1F66 #8D7D1F #1F8D46

split-complementary

#1F2F8D #8D461F #668D1F

monochromatic

#090E29 #141E5B #1F2F8D #2A40BF #4E62D8

Accessibility & contrast

On white

11.36

#1F2F8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1F2F8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F8D

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F8D	#FFFFFF	#000000	##FFFFFF
##1F2F8D	1.00	11.36	1.85	11.36
#FFFFFF	11.36	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F90

Deuteranopia (green-blind)

#00358B

Tritanopia (blue-blind)

#004859

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1f2f8d;
/* rgb */ color: rgb(31, 47, 141);
/* oklch */ color: oklch(36.0% 0.156 269.2);

Tailwind

colors: {
  custom: {
    50: '#6d67af',
    500: '#1f2f8d',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f8d;
$custom-light: #6d67af;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f8d",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 141
  },
  "hsl": {
    "h": 231.273,
    "s": 63.953,
    "l": 33.725
  },
  "oklch": {
    "l": 0.36033,
    "c": 0.15562,
    "h": 269.2
  },
  "luminance": 0.04247
}

Semantic roles & 50–950 ramp

primary

#1F2F8D

secondary

#BBAB4D

accent

#CF41E7

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1F2F8D

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

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