#1A3D87#1A3D87

#1A3D87 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.1% C 0.131 H 262.8°. Best body text is #FFFFFF at 10.19:1 contrast (WCAG AA passes).

Color values

HEX	#1A3D87
RGB	rgb(26, 61, 135)
HSL	hsl(221, 68%, 32%)
HSV	hsv(221, 81%, 53%)
CMYK	cmyk(80.7%, 54.8%, 0%, 47.1%)
CIE-LAB	lab(27.59, 16.24, -44.99)
CIE-LCH	lch(27.59, 47.83, 289.85°)
OKLab	oklab(38.14% -0.0164 -0.1297)
OKLCH	oklch(38.14% 0.131 262.8)
XYZ	xyz(6.4664, 5.3056, 23.6003)
Luminance	0.0531 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3D87 #87641A

analogous

#1A7487 #1A3D87 #2E1A87

triadic

#1A3D87 #871A3D #3D871A

tetradic

#1A3D87 #871A74 #87641A #1A872E

square

#1A3D87 #871A74 #87641A #1A872E

split-complementary

#1A3D87 #872E1A #74871A

monochromatic

#060F20 #102654 #1A3D87 #2454BA #4172DA

Accessibility & contrast

On white

10.19

#1A3D87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#1A3D87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3D87

10.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3D87	#FFFFFF	#000000	##FFFFFF
##1A3D87	1.00	10.19	2.06	10.19
#FFFFFF	10.19	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03468A

Deuteranopia (green-blind)

#003C86

Tritanopia (blue-blind)

#004F5C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1a3d87;
/* rgb */ color: rgb(26, 61, 135);
/* oklch */ color: oklch(38.1% 0.131 262.8);

Tailwind

colors: {
  custom: {
    50: '#6971ab',
    500: '#1a3d87',
    950: '#000000',
  },
}

SCSS

$custom: #1a3d87;
$custom-light: #6971ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3d87",
  "rgb": {
    "r": 26,
    "g": 61,
    "b": 135
  },
  "hsl": {
    "h": 220.734,
    "s": 67.702,
    "l": 31.569
  },
  "oklch": {
    "l": 0.38141,
    "c": 0.13071,
    "h": 262.8
  },
  "luminance": 0.05306
}

Semantic roles & 50–950 ramp

primary

#1A3D87

secondary

#BA9442

accent

#B33DEB

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1A3D87

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

Preview Lab → · Contrast checker → · Palette generator →