#1A3D84#1A3D84

#1A3D84 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 37.9% C 0.126 H 262.4°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#1A3D84
RGB	rgb(26, 61, 132)
HSL	hsl(220, 67%, 31%)
HSV	hsv(220, 80%, 52%)
CMYK	cmyk(80.3%, 53.8%, 0%, 48.2%)
CIE-LAB	lab(27.36, 15.01, -43.49)
CIE-LCH	lch(27.36, 46.01, 289.04°)
OKLab	oklab(37.89% -0.0168 -0.1253)
OKLCH	oklch(37.89% 0.126 262.4)
XYZ	xyz(6.2581, 5.2223, 22.5035)
Luminance	0.0522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3D84 #84611A

analogous

#1A7284 #1A3D84 #2C1A84

triadic

#1A3D84 #841A3D #3D841A

tetradic

#1A3D84 #841A72 #84611A #1A842C

square

#1A3D84 #841A72 #84611A #1A842C

split-complementary

#1A3D84 #842C1A #72841A

monochromatic

#060E1E #102551 #1A3D84 #2455B7 #3F72D9

Accessibility & contrast

On white

10.27

#1A3D84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#1A3D84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3D84

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3D84	#FFFFFF	#000000	##FFFFFF
##1A3D84	1.00	10.27	2.04	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B4687

Deuteranopia (green-blind)

#003C83

Tritanopia (blue-blind)

#004E5A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1a3d84;
/* rgb */ color: rgb(26, 61, 132);
/* oklch */ color: oklch(37.9% 0.126 262.4);

Tailwind

colors: {
  custom: {
    50: '#6871a8',
    500: '#1a3d84',
    950: '#000000',
  },
}

SCSS

$custom: #1a3d84;
$custom-light: #6871a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3d84",
  "rgb": {
    "r": 26,
    "g": 61,
    "b": 132
  },
  "hsl": {
    "h": 220.189,
    "s": 67.089,
    "l": 30.98
  },
  "oklch": {
    "l": 0.37894,
    "c": 0.12639,
    "h": 262.4
  },
  "luminance": 0.05223
}

Semantic roles & 50–950 ramp

primary

#1A3D84

secondary

#B89142

accent

#B13EEA

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1A3D84

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

Preview Lab → · Contrast checker → · Palette generator →