#1F5699#1F5699

#1F5699 is a mid, vivid cyan. Relative luminance 0.092; OKLCH L 45.4% C 0.123 H 255.5°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#1F5699
RGB	rgb(31, 86, 153)
HSL	hsl(213, 66%, 36%)
HSV	hsv(213, 80%, 60%)
CMYK	cmyk(79.7%, 43.8%, 0%, 40%)
CIE-LAB	lab(36.45, 7.09, -41.71)
CIE-LCH	lch(36.45, 42.31, 279.65°)
OKLab	oklab(45.4% -0.031 -0.1194)
OKLCH	oklch(45.4% 0.123 255.5)
XYZ	xyz(9.6405, 9.2456, 31.4073)
Luminance	0.0925 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5699 #99621F

analogous

#1F9399 #1F5699 #251F99

triadic

#1F5699 #991F56 #56991F

tetradic

#1F5699 #991F93 #99621F #1F9925

square

#1F5699 #991F93 #99621F #1F9925

split-complementary

#1F5699 #99251F #93991F

monochromatic

#0A1D33 #153966 #1F5699 #2973CC #5693DD

Accessibility & contrast

On white

7.37

#1F5699 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#1F5699 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5699

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5699	#FFFFFF	#000000	##FFFFFF
##1F5699	1.00	7.37	2.85	7.37
#FFFFFF	7.37	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#345C9C

Deuteranopia (green-blind)

#1D5198

Tritanopia (blue-blind)

#006670

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1f5699;
/* rgb */ color: rgb(31, 86, 153);
/* oklch */ color: oklch(45.4% 0.123 255.5);

Tailwind

colors: {
  custom: {
    50: '#6e85b7',
    500: '#1f5699',
    950: '#000000',
  },
}

SCSS

$custom: #1f5699;
$custom-light: #6e85b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5699",
  "rgb": {
    "r": 31,
    "g": 86,
    "b": 153
  },
  "hsl": {
    "h": 212.951,
    "s": 66.304,
    "l": 36.078
  },
  "oklch": {
    "l": 0.45397,
    "c": 0.12339,
    "h": 255.5
  },
  "luminance": 0.09247
}

Semantic roles & 50–950 ramp

primary

#1F5699

secondary

#C08F54

accent

#9C3FE9

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B11

muted

#7B7C80

Preview Lab

Preview with #1F5699

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

Preview Lab → · Contrast checker → · Palette generator →