#1A3F97#1A3F97

#1A3F97 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.9% C 0.151 H 263.7°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#1A3F97
RGB	rgb(26, 63, 151)
HSL	hsl(222, 71%, 35%)
HSV	hsv(222, 83%, 59%)
CMYK	cmyk(82.8%, 58.3%, 0%, 40.8%)
CIE-LAB	lab(29.43, 21.33, -51.84)
CIE-LCH	lch(29.43, 56.06, 292.37°)
OKLab	oklab(39.94% -0.0166 -0.1498)
OKLCH	oklch(39.94% 0.151 263.7)
XYZ	xyz(7.7874, 6.0081, 30.0214)
Luminance	0.0601 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3F97 #97721A

analogous

#1A7E97 #1A3F97 #341A97

triadic

#1A3F97 #971A3F #3F971A

tetradic

#1A3F97 #971A7E #97721A #1A9734

square

#1A3F97 #971A7E #97721A #1A9734

split-complementary

#1A3F97 #97341A #7E971A

monochromatic

#08132F #112963 #1A3F97 #2355CB #4B77E0

Accessibility & contrast

On white

9.54

#1A3F97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#1A3F97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3F97

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3F97	#FFFFFF	#000000	##FFFFFF
##1A3F97	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9A

Deuteranopia (green-blind)

#004095

Tritanopia (blue-blind)

#005564

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1a3f97;
/* rgb */ color: rgb(26, 63, 151);
/* oklch */ color: oklch(39.9% 0.151 263.7);

Tailwind

colors: {
  custom: {
    50: '#6d73b6',
    500: '#1a3f97',
    950: '#000000',
  },
}

SCSS

$custom: #1a3f97;
$custom-light: #6d73b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3f97",
  "rgb": {
    "r": 26,
    "g": 63,
    "b": 151
  },
  "hsl": {
    "h": 222.24,
    "s": 70.621,
    "l": 34.706
  },
  "oklch": {
    "l": 0.39936,
    "c": 0.15068,
    "h": 263.7
  },
  "luminance": 0.06009
}

Semantic roles & 50–950 ramp

primary

#1A3F97

secondary

#C29F4B

accent

#B83AED

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1A3F97

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

Preview Lab → · Contrast checker → · Palette generator →