#1A3197#1A3197

#1A3197 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.2% C 0.168 H 267.1°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#1A3197
RGB	rgb(26, 49, 151)
HSL	hsl(229, 71%, 35%)
HSV	hsv(229, 83%, 59%)
CMYK	cmyk(82.8%, 67.5%, 0%, 40.8%)
CIE-LAB	lab(25.71, 30.86, -57.93)
CIE-LCH	lch(25.71, 65.63, 298.05°)
OKLab	oklab(37.17% -0.0085 -0.1678)
OKLCH	oklch(37.17% 0.168 267.1)
XYZ	xyz(7.1083, 4.6498, 29.7950)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3197 #97801A

analogous

#1A7097 #1A3197 #421A97

triadic

#1A3197 #971A31 #31971A

tetradic

#1A3197 #971A70 #97801A #1A9742

square

#1A3197 #971A70 #97801A #1A9742

split-complementary

#1A3197 #97421A #70971A

monochromatic

#080F2F #112063 #1A3197 #2342CB #4B67E0

Accessibility & contrast

On white

10.88

#1A3197 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#1A3197 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3197

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3197	#FFFFFF	#000000	##FFFFFF
##1A3197	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00439A

Deuteranopia (green-blind)

#003795

Tritanopia (blue-blind)

#004D5F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1a3197;
/* rgb */ color: rgb(26, 49, 151);
/* oklch */ color: oklch(37.2% 0.168 267.1);

Tailwind

colors: {
  custom: {
    50: '#6e69b7',
    500: '#1a3197',
    950: '#000000',
  },
}

SCSS

$custom: #1a3197;
$custom-light: #6e69b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3197",
  "rgb": {
    "r": 26,
    "g": 49,
    "b": 151
  },
  "hsl": {
    "h": 228.96,
    "s": 70.621,
    "l": 34.706
  },
  "oklch": {
    "l": 0.37173,
    "c": 0.16799,
    "h": 267.1
  },
  "luminance": 0.04651
}

Semantic roles & 50–950 ramp

primary

#1A3197

secondary

#C2AC4B

accent

#CC3AED

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #1A3197

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

Preview Lab → · Contrast checker → · Palette generator →