#1F3894#1F3894

#1F3894 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.4% C 0.154 H 267.0°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#1F3894
RGB	rgb(31, 56, 148)
HSL	hsl(227, 65%, 35%)
HSV	hsv(227, 79%, 58%)
CMYK	cmyk(79.1%, 62.2%, 0%, 42%)
CIE-LAB	lab(27.45, 25.45, -53.22)
CIE-LCH	lch(27.45, 59.00, 295.56°)
OKLab	oklab(38.43% -0.0082 -0.1539)
OKLCH	oklch(38.43% 0.154 267)
XYZ	xyz(7.3227, 5.2569, 28.6400)
Luminance	0.0526 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3894 #947B1F

analogous

#1F7394 #1F3894 #401F94

triadic

#1F3894 #941F38 #38941F

tetradic

#1F3894 #941F73 #947B1F #1F9440

square

#1F3894 #941F73 #947B1F #1F9440

split-complementary

#1F3894 #94401F #73941F

monochromatic

#0A122F #142561 #1F3894 #2A4BC7 #5370DB

Accessibility & contrast

On white

10.24

#1F3894 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#1F3894 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3894

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3894	#FFFFFF	#000000	##FFFFFF
##1F3894	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004697

Deuteranopia (green-blind)

#003C92

Tritanopia (blue-blind)

#005060

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1f3894;
/* rgb */ color: rgb(31, 56, 148);
/* oklch */ color: oklch(38.4% 0.154 267.0);

Tailwind

colors: {
  custom: {
    50: '#6e6eb4',
    500: '#1f3894',
    950: '#000000',
  },
}

SCSS

$custom: #1f3894;
$custom-light: #6e6eb4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3894",
  "rgb": {
    "r": 31,
    "g": 56,
    "b": 148
  },
  "hsl": {
    "h": 227.179,
    "s": 65.363,
    "l": 35.098
  },
  "oklch": {
    "l": 0.38431,
    "c": 0.15408,
    "h": 267
  },
  "luminance": 0.05258
}

Semantic roles & 50–950 ramp

primary

#1F3894

secondary

#BEA751

accent

#C43FE8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1F3894

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

Preview Lab → · Contrast checker → · Palette generator →