#1F59C2#1F59C2

#1F59C2 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.1% C 0.175 H 261.2°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#1F59C2
RGB	rgb(31, 89, 194)
HSL	hsl(219, 72%, 44%)
HSV	hsv(219, 84%, 76%)
CMYK	cmyk(84%, 54.1%, 0%, 23.9%)
CIE-LAB	lab(40.13, 21.31, -60.04)
CIE-LCH	lch(40.13, 63.71, 289.54°)
OKLab	oklab(49.12% -0.027 -0.1733)
OKLCH	oklch(49.12% 0.175 261.2)
XYZ	xyz(13.8715, 11.3294, 52.4842)
Luminance	0.1133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F59C2 #C2881F

analogous

#1FABC2 #1F59C2 #361FC2

triadic

#1F59C2 #C21F59 #59C21F

tetradic

#1F59C2 #C21FAB #C2881F #1FC236

square

#1F59C2 #C21FAB #C2881F #1FC236

split-complementary

#1F59C2 #C2361F #ABC21F

monochromatic

#0E2958 #17418D #1F59C2 #3E78E0 #739DE9

Accessibility & contrast

On white

6.43

#1F59C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#1F59C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F59C2

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F59C2	#FFFFFF	#000000	##FFFFFF
##1F59C2	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066C6

Deuteranopia (green-blind)

#0058C0

Tritanopia (blue-blind)

#007385

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #1f59c2;
/* rgb */ color: rgb(31, 89, 194);
/* oklch */ color: oklch(49.1% 0.175 261.2);

Tailwind

colors: {
  custom: {
    50: '#7887d5',
    500: '#1f59c2',
    950: '#000000',
  },
}

SCSS

$custom: #1f59c2;
$custom-light: #7887d5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f59c2",
  "rgb": {
    "r": 31,
    "g": 89,
    "b": 194
  },
  "hsl": {
    "h": 218.65,
    "s": 72.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.49116,
    "c": 0.17539,
    "h": 261.2
  },
  "luminance": 0.11331
}

Semantic roles & 50–950 ramp

primary

#1F59C2

secondary

#CFAD6D

accent

#AE39EF

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #1F59C2

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

Preview Lab → · Contrast checker → · Palette generator →