#1F3EA7#1F3EA7

#1F3EA7 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.4% C 0.172 H 266.1°. Best body text is #FFFFFF at 9.11:1 contrast (WCAG AA passes).

Color values

HEX	#1F3EA7
RGB	rgb(31, 62, 167)
HSL	hsl(226, 69%, 39%)
HSV	hsv(226, 81%, 65%)
CMYK	cmyk(81.4%, 62.9%, 0%, 34.5%)
CIE-LAB	lab(30.70, 28.77, -59.45)
CIE-LCH	lch(30.70, 66.05, 295.83°)
OKLab	oklab(41.36% -0.0119 -0.172)
OKLCH	oklch(41.36% 0.172 266.1)
XYZ	xyz(9.2603, 6.5255, 37.3232)
Luminance	0.0653 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3EA7 #A7881F

analogous

#1F82A7 #1F3EA7 #441FA7

triadic

#1F3EA7 #A71F3E #3EA71F

tetradic

#1F3EA7 #A71F82 #A7881F #1FA744

square

#1F3EA7 #A71F82 #A7881F #1FA744

split-complementary

#1F3EA7 #A7441F #82A71F

monochromatic

#0C1840 #152B73 #1F3EA7 #2B53D8 #5F7DE1

Accessibility & contrast

On white

9.11

#1F3EA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#1F3EA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3EA7

9.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3EA7	#FFFFFF	#000000	##FFFFFF
##1F3EA7	1.00	9.11	2.31	9.11
#FFFFFF	9.11	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAA

Deuteranopia (green-blind)

#0042A5

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1f3ea7;
/* rgb */ color: rgb(31, 62, 167);
/* oklch */ color: oklch(41.4% 0.172 266.1);

Tailwind

colors: {
  custom: {
    50: '#7373c2',
    500: '#1f3ea7',
    950: '#000000',
  },
}

SCSS

$custom: #1f3ea7;
$custom-light: #7373c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3ea7",
  "rgb": {
    "r": 31,
    "g": 62,
    "b": 167
  },
  "hsl": {
    "h": 226.324,
    "s": 68.687,
    "l": 38.824
  },
  "oklch": {
    "l": 0.41355,
    "c": 0.17244,
    "h": 266.1
  },
  "luminance": 0.06527
}

Semantic roles & 50–950 ramp

primary

#1F3EA7

secondary

#C6AE5C

accent

#C43CEC

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1F3EA7

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

Preview Lab → · Contrast checker → · Palette generator →