#1F2F80#1F2F80

#1F2F80 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.8% C 0.138 H 269.2°. Best body text is #FFFFFF at 11.82:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F80
RGB	rgb(31, 47, 128)
HSL	hsl(230, 61%, 31%)
HSV	hsv(230, 76%, 50%)
CMYK	cmyk(75.8%, 63.3%, 0%, 49.8%)
CIE-LAB	lab(23.28, 23.82, -47.61)
CIE-LCH	lch(23.28, 53.23, 296.58°)
OKLab	oklab(34.79% -0.0018 -0.1375)
OKLCH	oklch(34.79% 0.138 269.2)
XYZ	xyz(5.4765, 3.8823, 20.8786)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F80 #80701F

analogous

#1F5F80 #1F2F80 #3F1F80

triadic

#1F2F80 #801F2F #2F801F

tetradic

#1F2F80 #801F5F #80701F #1F803F

square

#1F2F80 #801F5F #80701F #1F803F

split-complementary

#1F2F80 #803F1F #5F801F

monochromatic

#070B1D #131D4F #1F2F80 #2B41B1 #475ED2

Accessibility & contrast

On white

11.82

#1F2F80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1F2F80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F80

11.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F80	#FFFFFF	#000000	##FFFFFF
##1F2F80	1.00	11.82	1.78	11.82
#FFFFFF	11.82	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C83

Deuteranopia (green-blind)

#00337E

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1f2f80;
/* rgb */ color: rgb(31, 47, 128);
/* oklch */ color: oklch(34.8% 0.138 269.2);

Tailwind

colors: {
  custom: {
    50: '#6a67a6',
    500: '#1f2f80',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f80;
$custom-light: #6a67a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f80",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 128
  },
  "hsl": {
    "h": 230.103,
    "s": 61.006,
    "l": 31.176
  },
  "oklch": {
    "l": 0.34786,
    "c": 0.13751,
    "h": 269.2
  },
  "luminance": 0.03883
}

Semantic roles & 50–950 ramp

primary

#1F2F80

secondary

#B3A148

accent

#CA44E4

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1F2F80

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

Preview Lab → · Contrast checker → · Palette generator →