#1F3B96#1F3B96

#1F3B96 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.2% C 0.153 H 266.2°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#1F3B96
RGB	rgb(31, 59, 150)
HSL	hsl(226, 66%, 35%)
HSV	hsv(226, 79%, 59%)
CMYK	cmyk(79.3%, 60.7%, 0%, 41.2%)
CIE-LAB	lab(28.43, 24.19, -52.85)
CIE-LCH	lch(28.43, 58.12, 294.59°)
OKLab	oklab(39.21% -0.0101 -0.1527)
OKLCH	oklch(39.21% 0.153 266.2)
XYZ	xyz(7.6321, 5.6204, 29.5308)
Luminance	0.0562 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3B96 #967A1F

analogous

#1F7796 #1F3B96 #3E1F96

triadic

#1F3B96 #961F3B #3B961F

tetradic

#1F3B96 #961F77 #967A1F #1F963E

square

#1F3B96 #961F77 #967A1F #1F963E

split-complementary

#1F3B96 #963E1F #77961F

monochromatic

#0A1331 #152763 #1F3B96 #294FC9 #5474DC

Accessibility & contrast

On white

9.89

#1F3B96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#1F3B96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3B96

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3B96	#FFFFFF	#000000	##FFFFFF
##1F3B96	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004999

Deuteranopia (green-blind)

#003E94

Tritanopia (blue-blind)

#005262

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1f3b96;
/* rgb */ color: rgb(31, 59, 150);
/* oklch */ color: oklch(39.2% 0.153 266.2);

Tailwind

colors: {
  custom: {
    50: '#6f70b6',
    500: '#1f3b96',
    950: '#000000',
  },
}

SCSS

$custom: #1f3b96;
$custom-light: #6f70b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3b96",
  "rgb": {
    "r": 31,
    "g": 59,
    "b": 150
  },
  "hsl": {
    "h": 225.882,
    "s": 65.746,
    "l": 35.49
  },
  "oklch": {
    "l": 0.39213,
    "c": 0.15306,
    "h": 266.2
  },
  "luminance": 0.05621
}

Semantic roles & 50–950 ramp

primary

#1F3B96

secondary

#BFA552

accent

#C13FE9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1F3B96

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

Preview Lab → · Contrast checker → · Palette generator →