#1F3EA6#1F3EA6

#1F3EA6 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.3% C 0.171 H 266.0°. Best body text is #FFFFFF at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#1F3EA6
RGB	rgb(31, 62, 166)
HSL	hsl(226, 69%, 39%)
HSV	hsv(226, 81%, 65%)
CMYK	cmyk(81.3%, 62.7%, 0%, 34.9%)
CIE-LAB	lab(30.61, 28.39, -58.99)
CIE-LCH	lch(30.61, 65.47, 295.70°)
OKLab	oklab(41.26% -0.0119 -0.1707)
OKLCH	oklch(41.26% 0.171 266)
XYZ	xyz(9.1682, 6.4886, 36.8382)
Luminance	0.0649 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3EA6 #A6871F

analogous

#1F81A6 #1F3EA6 #431FA6

triadic

#1F3EA6 #A61F3E #3EA61F

tetradic

#1F3EA6 #A61F81 #A6871F #1FA643

square

#1F3EA6 #A61F81 #A6871F #1FA643

split-complementary

#1F3EA6 #A6431F #81A61F

monochromatic

#0C173F #152B72 #1F3EA6 #2B52D7 #5E7CE1

Accessibility & contrast

On white

9.14

#1F3EA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#1F3EA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3EA6

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3EA6	#FFFFFF	#000000	##FFFFFF
##1F3EA6	1.00	9.14	2.30	9.14
#FFFFFF	9.14	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA9

Deuteranopia (green-blind)

#0042A4

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1f3ea6;
/* rgb */ color: rgb(31, 62, 166);
/* oklch */ color: oklch(41.3% 0.171 266.0);

Tailwind

colors: {
  custom: {
    50: '#7373c1',
    500: '#1f3ea6',
    950: '#000000',
  },
}

SCSS

$custom: #1f3ea6;
$custom-light: #7373c1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3ea6",
  "rgb": {
    "r": 31,
    "g": 62,
    "b": 166
  },
  "hsl": {
    "h": 226.222,
    "s": 68.528,
    "l": 38.627
  },
  "oklch": {
    "l": 0.41263,
    "c": 0.1711,
    "h": 266
  },
  "luminance": 0.0649
}

Semantic roles & 50–950 ramp

primary

#1F3EA6

secondary

#C5AD5B

accent

#C33CEB

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1F3EA6

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

Preview Lab → · Contrast checker → · Palette generator →