#1F3395#1F3395

#1F3395 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.6% C 0.162 H 268.2°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#1F3395
RGB	rgb(31, 51, 149)
HSL	hsl(230, 66%, 35%)
HSV	hsv(230, 79%, 58%)
CMYK	cmyk(79.2%, 65.8%, 0%, 41.6%)
CIE-LAB	lab(26.24, 29.22, -55.83)
CIE-LCH	lch(26.24, 63.01, 297.63°)
OKLab	oklab(37.56% -0.0051 -0.1615)
OKLCH	oklch(37.56% 0.162 268.2)
XYZ	xyz(7.1718, 4.8281, 28.9819)
Luminance	0.0483 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3395 #95811F

analogous

#1F6E95 #1F3395 #461F95

triadic

#1F3395 #951F33 #33951F

tetradic

#1F3395 #951F6E #95811F #1F9546

square

#1F3395 #951F6E #95811F #1F9546

split-complementary

#1F3395 #95461F #6E951F

monochromatic

#0A1030 #142262 #1F3395 #2A44C8 #536ADB

Accessibility & contrast

On white

10.68

#1F3395 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#1F3395 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3395

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3395	#FFFFFF	#000000	##FFFFFF
##1F3395	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004498

Deuteranopia (green-blind)

#003993

Tritanopia (blue-blind)

#004D5F

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1f3395;
/* rgb */ color: rgb(31, 51, 149);
/* oklch */ color: oklch(37.6% 0.162 268.2);

Tailwind

colors: {
  custom: {
    50: '#6f6ab5',
    500: '#1f3395',
    950: '#000000',
  },
}

SCSS

$custom: #1f3395;
$custom-light: #6f6ab5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3395",
  "rgb": {
    "r": 31,
    "g": 51,
    "b": 149
  },
  "hsl": {
    "h": 229.831,
    "s": 65.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.3756,
    "c": 0.16162,
    "h": 268.2
  },
  "luminance": 0.04829
}

Semantic roles & 50–950 ramp

primary

#1F3395

secondary

#BFAC51

accent

#CC3FE9

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #1F3395

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

Preview Lab → · Contrast checker → · Palette generator →