#1F2F79#1F2F79

#1F2F79 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.1% C 0.127 H 269.2°. Best body text is #FFFFFF at 12.06:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F79
RGB	rgb(31, 47, 121)
HSL	hsl(229, 59%, 30%)
HSV	hsv(229, 74%, 47%)
CMYK	cmyk(74.4%, 61.2%, 0%, 52.5%)
CIE-LAB	lab(22.67, 21.07, -44.17)
CIE-LCH	lch(22.67, 48.94, 295.50°)
OKLab	oklab(34.14% -0.0018 -0.1274)
OKLCH	oklch(34.14% 0.127 269.2)
XYZ	xyz(5.0316, 3.7043, 18.5353)
Luminance	0.0370 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F79 #79691F

analogous

#1F5C79 #1F2F79 #3C1F79

triadic

#1F2F79 #791F2F #2F791F

tetradic

#1F2F79 #791F5C #79691F #1F793C

square

#1F2F79 #791F5C #79691F #1F793C

split-complementary

#1F2F79 #793C1F #5C791F

monochromatic

#060918 #131C48 #1F2F79 #2B42AA #435CCF

Accessibility & contrast

On white

12.06

#1F2F79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1F2F79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F79

12.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F79	#FFFFFF	#000000	##FFFFFF
##1F2F79	1.00	12.06	1.74	12.06
#FFFFFF	12.06	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A7B

Deuteranopia (green-blind)

#003278

Tritanopia (blue-blind)

#00414F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1f2f79;
/* rgb */ color: rgb(31, 47, 121);
/* oklch */ color: oklch(34.1% 0.127 269.2);

Tailwind

colors: {
  custom: {
    50: '#6867a0',
    500: '#1f2f79',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f79;
$custom-light: #6867a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f79",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 121
  },
  "hsl": {
    "h": 229.333,
    "s": 59.211,
    "l": 29.804
  },
  "oklch": {
    "l": 0.34144,
    "c": 0.12743,
    "h": 269.2
  },
  "luminance": 0.03705
}

Semantic roles & 50–950 ramp

primary

#1F2F79

secondary

#AC9A47

accent

#C645E2

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060F

muted

#7A7A7E

Preview Lab

Preview with #1F2F79

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

Preview Lab → · Contrast checker → · Palette generator →