#1F4186#1F4186

#1F4186 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.2% C 0.123 H 262.5°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#1F4186
RGB	rgb(31, 65, 134)
HSL	hsl(220, 62%, 32%)
HSV	hsv(220, 77%, 53%)
CMYK	cmyk(76.9%, 51.5%, 0%, 47.5%)
CIE-LAB	lab(28.88, 13.67, -42.26)
CIE-LCH	lch(28.88, 44.42, 287.92°)
OKLab	oklab(39.16% -0.016 -0.1215)
OKLCH	oklch(39.16% 0.123 262.5)
XYZ	xyz(6.7569, 5.7924, 23.3116)
Luminance	0.0579 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4186 #86641F

analogous

#1F7586 #1F4186 #301F86

triadic

#1F4186 #861F41 #41861F

tetradic

#1F4186 #861F75 #86641F #1F8630

square

#1F4186 #861F75 #86641F #1F8630

split-complementary

#1F4186 #86301F #75861F

monochromatic

#081123 #142954 #1F4186 #2A59B8 #4A78D5

Accessibility & contrast

On white

9.73

#1F4186 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1F4186 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4186

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4186	#FFFFFF	#000000	##FFFFFF
##1F4186	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184989

Deuteranopia (green-blind)

#004085

Tritanopia (blue-blind)

#00515D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1f4186;
/* rgb */ color: rgb(31, 65, 134);
/* oklch */ color: oklch(39.2% 0.123 262.5);

Tailwind

colors: {
  custom: {
    50: '#6a75aa',
    500: '#1f4186',
    950: '#000000',
  },
}

SCSS

$custom: #1f4186;
$custom-light: #6a75aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4186",
  "rgb": {
    "r": 31,
    "g": 65,
    "b": 134
  },
  "hsl": {
    "h": 220.194,
    "s": 62.424,
    "l": 32.353
  },
  "oklch": {
    "l": 0.39156,
    "c": 0.12254,
    "h": 262.5
  },
  "luminance": 0.05793
}

Semantic roles & 50–950 ramp

primary

#1F4186

secondary

#B89349

accent

#B042E5

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1F4186

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

Preview Lab → · Contrast checker → · Palette generator →