#1F41A6#1F41A6

#1F41A6 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.9% C 0.167 H 265.3°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#1F41A6
RGB	rgb(31, 65, 166)
HSL	hsl(225, 69%, 39%)
HSV	hsv(225, 81%, 65%)
CMYK	cmyk(81.3%, 60.8%, 0%, 34.9%)
CIE-LAB	lab(31.40, 26.37, -57.70)
CIE-LCH	lch(31.40, 63.44, 294.56°)
OKLab	oklab(41.85% -0.0136 -0.1669)
OKLCH	oklch(41.85% 0.167 265.3)
XYZ	xyz(9.3359, 6.8240, 36.8941)
Luminance	0.0683 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F41A6 #A6841F

analogous

#1F84A6 #1F41A6 #401FA6

triadic

#1F41A6 #A61F41 #41A61F

tetradic

#1F41A6 #A61F84 #A6841F #1FA640

square

#1F41A6 #A61F84 #A6841F #1FA640

split-complementary

#1F41A6 #A6401F #84A61F

monochromatic

#0C193F #152D72 #1F41A6 #2B56D7 #5E7FE1

Accessibility & contrast

On white

8.88

#1F41A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#1F41A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F41A6

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F41A6	#FFFFFF	#000000	##FFFFFF
##1F41A6	1.00	8.88	2.37	8.88
#FFFFFF	8.88	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A9

Deuteranopia (green-blind)

#0044A4

Tritanopia (blue-blind)

#005B6D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1f41a6;
/* rgb */ color: rgb(31, 65, 166);
/* oklch */ color: oklch(41.9% 0.167 265.3);

Tailwind

colors: {
  custom: {
    50: '#7275c1',
    500: '#1f41a6',
    950: '#000000',
  },
}

SCSS

$custom: #1f41a6;
$custom-light: #7275c1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f41a6",
  "rgb": {
    "r": 31,
    "g": 65,
    "b": 166
  },
  "hsl": {
    "h": 224.889,
    "s": 68.528,
    "l": 38.627
  },
  "oklch": {
    "l": 0.4185,
    "c": 0.16743,
    "h": 265.3
  },
  "luminance": 0.06825
}

Semantic roles & 50–950 ramp

primary

#1F41A6

secondary

#C5AB5B

accent

#BF3CEB

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1F41A6

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

Preview Lab → · Contrast checker → · Palette generator →