#1F4284#1F4284

#1F4284 is a dark, moderate blue. Relative luminance 0.059; OKLCH L 39.2% C 0.118 H 261.6°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#1F4284
RGB	rgb(31, 66, 132)
HSL	hsl(219, 62%, 32%)
HSV	hsv(219, 77%, 52%)
CMYK	cmyk(76.5%, 50%, 0%, 48.2%)
CIE-LAB	lab(29.04, 12.18, -40.77)
CIE-LCH	lch(29.04, 42.55, 286.63°)
OKLab	oklab(39.23% -0.0172 -0.1171)
OKLCH	oklch(39.23% 0.118 261.6)
XYZ	xyz(6.6767, 5.8529, 22.6032)
Luminance	0.0585 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4284 #84611F

analogous

#1F7584 #1F4284 #2F1F84

triadic

#1F4284 #841F42 #42841F

tetradic

#1F4284 #841F75 #84611F #1F842F

square

#1F4284 #841F75 #84611F #1F842F

split-complementary

#1F4284 #842F1F #75841F

monochromatic

#081021 #132952 #1F4284 #2B5BB6 #4979D4

Accessibility & contrast

On white

9.67

#1F4284 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#1F4284 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4284

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4284	#FFFFFF	#000000	##FFFFFF
##1F4284	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4986

Deuteranopia (green-blind)

#004083

Tritanopia (blue-blind)

#00525C

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1f4284;
/* rgb */ color: rgb(31, 66, 132);
/* oklch */ color: oklch(39.2% 0.118 261.6);

Tailwind

colors: {
  custom: {
    50: '#6a75a8',
    500: '#1f4284',
    950: '#000000',
  },
}

SCSS

$custom: #1f4284;
$custom-light: #6a75a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4284",
  "rgb": {
    "r": 31,
    "g": 66,
    "b": 132
  },
  "hsl": {
    "h": 219.208,
    "s": 61.963,
    "l": 31.961
  },
  "oklch": {
    "l": 0.3923,
    "c": 0.11834,
    "h": 261.6
  },
  "luminance": 0.05854
}

Semantic roles & 50–950 ramp

primary

#1F4284

secondary

#B79048

accent

#AD43E5

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1F4284

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

Preview Lab → · Contrast checker → · Palette generator →