#1F52A6#1F52A6

#1F52A6 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.4% C 0.146 H 260.0°. Best body text is #FFFFFF at 7.46:1 contrast (WCAG AA passes).

Color values

HEX	#1F52A6
RGB	rgb(31, 82, 166)
HSL	hsl(217, 69%, 39%)
HSV	hsv(217, 81%, 65%)
CMYK	cmyk(81.3%, 50.6%, 0%, 34.9%)
CIE-LAB	lab(36.13, 14.92, -50.02)
CIE-LCH	lch(36.13, 52.19, 286.60°)
OKLab	oklab(45.43% -0.0254 -0.144)
OKLCH	oklch(45.43% 0.146 260)
XYZ	xyz(10.4628, 9.0778, 37.2698)
Luminance	0.0908 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F52A6 #A6731F

analogous

#1F95A6 #1F52A6 #2F1FA6

triadic

#1F52A6 #A61F52 #52A61F

tetradic

#1F52A6 #A61F95 #A6731F #1FA62F

square

#1F52A6 #A61F95 #A6731F #1FA62F

split-complementary

#1F52A6 #A62F1F #95A61F

monochromatic

#0C1F3F #153972 #1F52A6 #2B6CD7 #5E90E1

Accessibility & contrast

On white

7.46

#1F52A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#1F52A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F52A6

7.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F52A6	#FFFFFF	#000000	##FFFFFF
##1F52A6	1.00	7.46	2.82	7.46
#FFFFFF	7.46	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E5BA9

Deuteranopia (green-blind)

#004FA4

Tritanopia (blue-blind)

#006674

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1f52a6;
/* rgb */ color: rgb(31, 82, 166);
/* oklch */ color: oklch(45.4% 0.146 260.0);

Tailwind

colors: {
  custom: {
    50: '#7182c1',
    500: '#1f52a6',
    950: '#000000',
  },
}

SCSS

$custom: #1f52a6;
$custom-light: #7182c1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f52a6",
  "rgb": {
    "r": 31,
    "g": 82,
    "b": 166
  },
  "hsl": {
    "h": 217.333,
    "s": 68.528,
    "l": 38.627
  },
  "oklch": {
    "l": 0.45428,
    "c": 0.14619,
    "h": 260
  },
  "luminance": 0.09079
}

Semantic roles & 50–950 ramp

primary

#1F52A6

secondary

#C59D5B

accent

#A93CEB

background

#F7F7FB

surface

#EDEEF7

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1F52A6

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

Preview Lab → · Contrast checker → · Palette generator →