#1F2FA6#1F2FA6

#1F2FA6 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.6% C 0.188 H 268.7°. Best body text is #FFFFFF at 10.42:1 contrast (WCAG AA passes).

Color values

HEX	#1F2FA6
RGB	rgb(31, 47, 166)
HSL	hsl(233, 69%, 39%)
HSV	hsv(233, 81%, 65%)
CMYK	cmyk(81.3%, 71.7%, 0%, 34.9%)
CIE-LAB	lab(26.95, 38.13, -65.01)
CIE-LCH	lch(26.95, 75.37, 300.39°)
OKLab	oklab(38.59% -0.0044 -0.1883)
OKLCH	oklch(38.59% 0.188 268.7)
XYZ	xyz(8.4621, 5.0765, 36.6029)
Luminance	0.0508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2FA6 #A6961F

analogous

#1F72A6 #1F2FA6 #521FA6

triadic

#1F2FA6 #A61F2F #2FA61F

tetradic

#1F2FA6 #A61F72 #A6961F #1FA652

square

#1F2FA6 #A61F72 #A6961F #1FA652

split-complementary

#1F2FA6 #A6521F #72A61F

monochromatic

#0C123F #152072 #1F2FA6 #2B3FD7 #5E6EE1

Accessibility & contrast

On white

10.42

#1F2FA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#1F2FA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2FA6

10.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2FA6	#FFFFFF	#000000	##FFFFFF
##1F2FA6	1.00	10.42	2.02	10.42
#FFFFFF	10.42	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046AA

Deuteranopia (green-blind)

#0039A4

Tritanopia (blue-blind)

#005167

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1f2fa6;
/* rgb */ color: rgb(31, 47, 166);
/* oklch */ color: oklch(38.6% 0.188 268.7);

Tailwind

colors: {
  custom: {
    50: '#7468c2',
    500: '#1f2fa6',
    950: '#000000',
  },
}

SCSS

$custom: #1f2fa6;
$custom-light: #7468c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2fa6",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 166
  },
  "hsl": {
    "h": 232.889,
    "s": 68.528,
    "l": 38.627
  },
  "oklch": {
    "l": 0.38585,
    "c": 0.1884,
    "h": 268.7
  },
  "luminance": 0.05078
}

Semantic roles & 50–950 ramp

primary

#1F2FA6

secondary

#C5B95B

accent

#D73CEB

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #1F2FA6

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

Preview Lab → · Contrast checker → · Palette generator →