#1F5387#1F5387

#1F5387 is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.5% C 0.102 H 251.4°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#1F5387
RGB	rgb(31, 83, 135)
HSL	hsl(210, 63%, 33%)
HSV	hsv(210, 77%, 53%)
CMYK	cmyk(77%, 38.5%, 0%, 47.1%)
CIE-LAB	lab(34.45, 1.94, -33.97)
CIE-LCH	lch(34.45, 34.02, 273.27°)
OKLab	oklab(43.49% -0.0326 -0.0968)
OKLCH	oklch(43.49% 0.102 251.4)
XYZ	xyz(8.0299, 8.2262, 24.0816)
Luminance	0.0823 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5387 #87531F

analogous

#1F8787 #1F5387 #1F1F87

triadic

#1F5387 #871F53 #53871F

tetradic

#1F5387 #871F87 #87531F #1F871F

square

#1F5387 #871F87 #87531F #1F871F

split-complementary

#1F5387 #871F1F #87871F

monochromatic

#081623 #143455 #1F5387 #2A72B9 #4B90D6

Accessibility & contrast

On white

7.94

#1F5387 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#1F5387 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5387

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5387	#FFFFFF	#000000	##FFFFFF
##1F5387	1.00	7.94	2.65	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B5689

Deuteranopia (green-blind)

#2B4D86

Tritanopia (blue-blind)

#005F66

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1f5387;
/* rgb */ color: rgb(31, 83, 135);
/* oklch */ color: oklch(43.5% 0.102 251.4);

Tailwind

colors: {
  custom: {
    50: '#6a83aa',
    500: '#1f5387',
    950: '#000000',
  },
}

SCSS

$custom: #1f5387;
$custom-light: #6a83aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5387",
  "rgb": {
    "r": 31,
    "g": 83,
    "b": 135
  },
  "hsl": {
    "h": 210,
    "s": 62.651,
    "l": 32.549
  },
  "oklch": {
    "l": 0.43485,
    "c": 0.10211,
    "h": 251.4
  },
  "luminance": 0.08227
}

Semantic roles & 50–950 ramp

primary

#1F5387

secondary

#B8814A

accent

#9442E6

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1F5387

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

Preview Lab → · Contrast checker → · Palette generator →