#1F5BC2#1F5BC2

#1F5BC2 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.5% C 0.173 H 260.6°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#1F5BC2
RGB	rgb(31, 91, 194)
HSL	hsl(218, 72%, 44%)
HSV	hsv(218, 84%, 76%)
CMYK	cmyk(84%, 53.1%, 0%, 23.9%)
CIE-LAB	lab(40.68, 19.99, -59.14)
CIE-LCH	lch(40.68, 62.43, 288.68°)
OKLab	oklab(49.54% -0.0283 -0.1706)
OKLCH	oklch(49.54% 0.173 260.6)
XYZ	xyz(14.0402, 11.6668, 52.5404)
Luminance	0.1167 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5BC2 #C2861F

analogous

#1FADC2 #1F5BC2 #351FC2

triadic

#1F5BC2 #C21F5B #5BC21F

tetradic

#1F5BC2 #C21FAD #C2861F #1FC235

square

#1F5BC2 #C21FAD #C2861F #1FC235

split-complementary

#1F5BC2 #C2351F #ADC21F

monochromatic

#0E2958 #17428D #1F5BC2 #3E7AE0 #739EE9

Accessibility & contrast

On white

6.30

#1F5BC2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#1F5BC2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F5BC2

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5BC2	#FFFFFF	#000000	##FFFFFF
##1F5BC2	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0668C6

Deuteranopia (green-blind)

#0059C0

Tritanopia (blue-blind)

#007485

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #1f5bc2;
/* rgb */ color: rgb(31, 91, 194);
/* oklch */ color: oklch(49.5% 0.173 260.6);

Tailwind

colors: {
  custom: {
    50: '#7888d5',
    500: '#1f5bc2',
    950: '#000000',
  },
}

SCSS

$custom: #1f5bc2;
$custom-light: #7888d5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5bc2",
  "rgb": {
    "r": 31,
    "g": 91,
    "b": 194
  },
  "hsl": {
    "h": 217.914,
    "s": 72.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.49535,
    "c": 0.17296,
    "h": 260.6
  },
  "luminance": 0.11669
}

Semantic roles & 50–950 ramp

primary

#1F5BC2

secondary

#CFAB6D

accent

#AC39EF

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #1F5BC2

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

Preview Lab → · Contrast checker → · Palette generator →