#1F3E9D#1F3E9D

#1F3E9D is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.4% C 0.159 H 265.7°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#1F3E9D
RGB	rgb(31, 62, 157)
HSL	hsl(225, 67%, 37%)
HSV	hsv(225, 80%, 62%)
CMYK	cmyk(80.3%, 60.5%, 0%, 38.4%)
CIE-LAB	lab(29.84, 24.89, -54.83)
CIE-LCH	lch(29.84, 60.21, 294.42°)
OKLab	oklab(40.45% -0.012 -0.1585)
OKLCH	oklch(40.45% 0.159 265.7)
XYZ	xyz(8.3714, 6.1699, 32.6415)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3E9D #9D7E1F

analogous

#1F7D9D #1F3E9D #3F1F9D

triadic

#1F3E9D #9D1F3E #3E9D1F

tetradic

#1F3E9D #9D1F7D #9D7E1F #1F9D3F

square

#1F3E9D #9D1F7D #9D7E1F #1F9D3F

split-complementary

#1F3E9D #9D3F1F #7D9D1F

monochromatic

#0B1637 #152A6A #1F3E9D #2952D0 #5879DE

Accessibility & contrast

On white

9.40

#1F3E9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#1F3E9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3E9D

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3E9D	#FFFFFF	#000000	##FFFFFF
##1F3E9D	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA0

Deuteranopia (green-blind)

#00419B

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1f3e9d;
/* rgb */ color: rgb(31, 62, 157);
/* oklch */ color: oklch(40.4% 0.159 265.7);

Tailwind

colors: {
  custom: {
    50: '#7072bb',
    500: '#1f3e9d',
    950: '#000000',
  },
}

SCSS

$custom: #1f3e9d;
$custom-light: #7072bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3e9d",
  "rgb": {
    "r": 31,
    "g": 62,
    "b": 157
  },
  "hsl": {
    "h": 225.238,
    "s": 67.021,
    "l": 36.863
  },
  "oklch": {
    "l": 0.40445,
    "c": 0.15892,
    "h": 265.7
  },
  "luminance": 0.06171
}

Semantic roles & 50–950 ramp

primary

#1F3E9D

secondary

#C2A756

accent

#C03EEA

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1F3E9D

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

Preview Lab → · Contrast checker → · Palette generator →