#1F4686#1F4686

#1F4686 is a dark, moderate blue. Relative luminance 0.064; OKLCH L 40.3% C 0.116 H 259.8°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#1F4686
RGB	rgb(31, 70, 134)
HSL	hsl(217, 62%, 32%)
HSV	hsv(217, 77%, 53%)
CMYK	cmyk(76.9%, 47.8%, 0%, 47.5%)
CIE-LAB	lab(30.38, 10.23, -39.85)
CIE-LCH	lch(30.38, 41.14, 284.40°)
OKLab	oklab(40.31% -0.0205 -0.1143)
OKLCH	oklch(40.31% 0.116 259.8)
XYZ	xyz(7.0567, 6.3921, 23.4115)
Luminance	0.0639 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4686 #865F1F

analogous

#1F7986 #1F4686 #2C1F86

triadic

#1F4686 #861F46 #46861F

tetradic

#1F4686 #861F79 #865F1F #1F862C

square

#1F4686 #861F79 #865F1F #1F862C

split-complementary

#1F4686 #862C1F #79861F

monochromatic

#081223 #142C54 #1F4686 #2A60B8 #4A7FD5

Accessibility & contrast

On white

9.22

#1F4686 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#1F4686 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4686

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4686	#FFFFFF	#000000	##FFFFFF
##1F4686	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#244D88

Deuteranopia (green-blind)

#0B4385

Tritanopia (blue-blind)

#00555F

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1f4686;
/* rgb */ color: rgb(31, 70, 134);
/* oklch */ color: oklch(40.3% 0.116 259.8);

Tailwind

colors: {
  custom: {
    50: '#6a78aa',
    500: '#1f4686',
    950: '#000000',
  },
}

SCSS

$custom: #1f4686;
$custom-light: #6a78aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4686",
  "rgb": {
    "r": 31,
    "g": 70,
    "b": 134
  },
  "hsl": {
    "h": 217.282,
    "s": 62.424,
    "l": 32.353
  },
  "oklch": {
    "l": 0.40305,
    "c": 0.11611,
    "h": 259.8
  },
  "luminance": 0.06393
}

Semantic roles & 50–950 ramp

primary

#1F4686

secondary

#B88E49

accent

#A842E5

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1F4686

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

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