#1A3787#1A3787

#1A3787 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.8% C 0.139 H 265.0°. Best body text is #FFFFFF at 10.82:1 contrast (WCAG AA passes).

Color values

HEX	#1A3787
RGB	rgb(26, 55, 135)
HSL	hsl(224, 68%, 32%)
HSV	hsv(224, 81%, 53%)
CMYK	cmyk(80.7%, 59.3%, 0%, 47.1%)
CIE-LAB	lab(25.86, 20.43, -47.79)
CIE-LCH	lch(25.86, 51.97, 293.15°)
OKLab	oklab(36.84% -0.012 -0.138)
OKLCH	oklch(36.84% 0.139 265)
XYZ	xyz(6.1638, 4.7005, 23.4994)
Luminance	0.0470 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3787 #876A1A

analogous

#1A6E87 #1A3787 #341A87

triadic

#1A3787 #871A37 #37871A

tetradic

#1A3787 #871A6E #876A1A #1A8734

square

#1A3787 #871A6E #876A1A #1A8734

split-complementary

#1A3787 #87341A #6E871A

monochromatic

#060D20 #102254 #1A3787 #244CBA #416ADA

Accessibility & contrast

On white

10.82

#1A3787 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1A3787 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3787

10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3787	#FFFFFF	#000000	##FFFFFF
##1A3787	1.00	10.82	1.94	10.82
#FFFFFF	10.82	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428A

Deuteranopia (green-blind)

#003885

Tritanopia (blue-blind)

#004B59

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1a3787;
/* rgb */ color: rgb(26, 55, 135);
/* oklch */ color: oklch(36.8% 0.139 265.0);

Tailwind

colors: {
  custom: {
    50: '#6a6dab',
    500: '#1a3787',
    950: '#000000',
  },
}

SCSS

$custom: #1a3787;
$custom-light: #6a6dab;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3787",
  "rgb": {
    "r": 26,
    "g": 55,
    "b": 135
  },
  "hsl": {
    "h": 224.037,
    "s": 67.702,
    "l": 31.569
  },
  "oklch": {
    "l": 0.3684,
    "c": 0.13853,
    "h": 265
  },
  "luminance": 0.04701
}

Semantic roles & 50–950 ramp

primary

#1A3787

secondary

#BA9A42

accent

#BC3DEB

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1A3787

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

Preview Lab → · Contrast checker → · Palette generator →