#1F53A6#1F53A6

#1F53A6 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 45.6% C 0.145 H 259.6°. Best body text is #FFFFFF at 7.38:1 contrast (WCAG AA passes).

Color values

HEX	#1F53A6
RGB	rgb(31, 83, 166)
HSL	hsl(217, 69%, 39%)
HSV	hsv(217, 81%, 65%)
CMYK	cmyk(81.3%, 50%, 0%, 34.9%)
CIE-LAB	lab(36.42, 14.25, -49.55)
CIE-LCH	lch(36.42, 51.56, 286.04°)
OKLab	oklab(45.65% -0.0261 -0.1426)
OKLCH	oklch(45.65% 0.145 259.6)
XYZ	xyz(10.5388, 9.2297, 37.2951)
Luminance	0.0923 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F53A6 #A6721F

analogous

#1F96A6 #1F53A6 #2E1FA6

triadic

#1F53A6 #A61F53 #53A61F

tetradic

#1F53A6 #A61F96 #A6721F #1FA62E

square

#1F53A6 #A61F96 #A6721F #1FA62E

split-complementary

#1F53A6 #A62E1F #96A61F

monochromatic

#0C1F3F #153972 #1F53A6 #2B6DD7 #5E91E1

Accessibility & contrast

On white

7.38

#1F53A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#1F53A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F53A6

7.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F53A6	#FFFFFF	#000000	##FFFFFF
##1F53A6	1.00	7.38	2.85	7.38
#FFFFFF	7.38	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#215CA9

Deuteranopia (green-blind)

#0050A4

Tritanopia (blue-blind)

#006774

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1f53a6;
/* rgb */ color: rgb(31, 83, 166);
/* oklch */ color: oklch(45.6% 0.145 259.6);

Tailwind

colors: {
  custom: {
    50: '#7182c1',
    500: '#1f53a6',
    950: '#000000',
  },
}

SCSS

$custom: #1f53a6;
$custom-light: #7182c1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f53a6",
  "rgb": {
    "r": 31,
    "g": 83,
    "b": 166
  },
  "hsl": {
    "h": 216.889,
    "s": 68.528,
    "l": 38.627
  },
  "oklch": {
    "l": 0.45649,
    "c": 0.14496,
    "h": 259.6
  },
  "luminance": 0.09231
}

Semantic roles & 50–950 ramp

primary

#1F53A6

secondary

#C59D5B

accent

#A83CEB

background

#F7F7FB

surface

#EDEEF7

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1F53A6

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

Preview Lab → · Contrast checker → · Palette generator →