#1F3E91#1F3E91

#1F3E91 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.4% C 0.142 H 265.0°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#1F3E91
RGB	rgb(31, 62, 145)
HSL	hsl(224, 65%, 35%)
HSV	hsv(224, 79%, 57%)
CMYK	cmyk(78.6%, 57.2%, 0%, 43.1%)
CIE-LAB	lab(28.85, 20.15, -49.11)
CIE-LCH	lch(28.85, 53.08, 292.31°)
OKLab	oklab(39.4% -0.0125 -0.1417)
OKLCH	oklch(39.4% 0.142 265)
XYZ	xyz(7.3967, 5.7801, 27.5084)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3E91 #91721F

analogous

#1F7791 #1F3E91 #391F91

triadic

#1F3E91 #911F3E #3E911F

tetradic

#1F3E91 #911F77 #91721F #1F9139

square

#1F3E91 #911F77 #91721F #1F9139

split-complementary

#1F3E91 #91391F #77911F

monochromatic

#09132C #14285F #1F3E91 #2A54C3 #5176DA

Accessibility & contrast

On white

9.74

#1F3E91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1F3E91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3E91

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3E91	#FFFFFF	#000000	##FFFFFF
##1F3E91	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004994

Deuteranopia (green-blind)

#003F8F

Tritanopia (blue-blind)

#005361

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1f3e91;
/* rgb */ color: rgb(31, 62, 145);
/* oklch */ color: oklch(39.4% 0.142 265.0);

Tailwind

colors: {
  custom: {
    50: '#6d72b2',
    500: '#1f3e91',
    950: '#000000',
  },
}

SCSS

$custom: #1f3e91;
$custom-light: #6d72b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3e91",
  "rgb": {
    "r": 31,
    "g": 62,
    "b": 145
  },
  "hsl": {
    "h": 223.684,
    "s": 64.773,
    "l": 34.51
  },
  "oklch": {
    "l": 0.39397,
    "c": 0.14222,
    "h": 265
  },
  "luminance": 0.05781
}

Semantic roles & 50–950 ramp

primary

#1F3E91

secondary

#BD9F4F

accent

#BA40E8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1F3E91

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

Preview Lab → · Contrast checker → · Palette generator →