#1A3287#1A3287

#1A3287 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.8% C 0.145 H 266.6°. Best body text is #FFFFFF at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#1A3287
RGB	rgb(26, 50, 135)
HSL	hsl(227, 68%, 32%)
HSV	hsv(227, 81%, 53%)
CMYK	cmyk(80.7%, 63%, 0%, 47.1%)
CIE-LAB	lab(24.48, 23.92, -50.05)
CIE-LCH	lch(24.48, 55.47, 295.55°)
OKLab	oklab(35.81% -0.0086 -0.1447)
OKLCH	oklch(35.81% 0.145 266.6)
XYZ	xyz(5.9382, 4.2494, 23.4242)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3287 #876F1A

analogous

#1A6987 #1A3287 #391A87

triadic

#1A3287 #871A32 #32871A

tetradic

#1A3287 #871A69 #876F1A #1A8739

square

#1A3287 #871A69 #876F1A #1A8739

split-complementary

#1A3287 #87391A #69871A

monochromatic

#060C20 #101F54 #1A3287 #2445BA #4163DA

Accessibility & contrast

On white

11.35

#1A3287 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1A3287 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3287

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3287	#FFFFFF	#000000	##FFFFFF
##1A3287	1.00	11.35	1.85	11.35
#FFFFFF	11.35	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F8A

Deuteranopia (green-blind)

#003585

Tritanopia (blue-blind)

#004857

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1a3287;
/* rgb */ color: rgb(26, 50, 135);
/* oklch */ color: oklch(35.8% 0.145 266.6);

Tailwind

colors: {
  custom: {
    50: '#6a69ab',
    500: '#1a3287',
    950: '#000000',
  },
}

SCSS

$custom: #1a3287;
$custom-light: #6a69ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3287",
  "rgb": {
    "r": 26,
    "g": 50,
    "b": 135
  },
  "hsl": {
    "h": 226.789,
    "s": 67.702,
    "l": 31.569
  },
  "oklch": {
    "l": 0.35806,
    "c": 0.14498,
    "h": 266.6
  },
  "luminance": 0.0425
}

Semantic roles & 50–950 ramp

primary

#1A3287

secondary

#BAA042

accent

#C43DEB

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1A3287

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

Preview Lab → · Contrast checker → · Palette generator →