#1A3E88#1A3E88

#1A3E88 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.4% C 0.131 H 262.5°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#1A3E88
RGB	rgb(26, 62, 136)
HSL	hsl(220, 68%, 32%)
HSV	hsv(220, 81%, 53%)
CMYK	cmyk(80.9%, 54.4%, 0%, 46.7%)
CIE-LAB	lab(27.96, 15.95, -45.01)
CIE-LCH	lch(27.96, 47.75, 289.51°)
OKLab	oklab(38.45% -0.0171 -0.1297)
OKLCH	oklch(38.45% 0.131 262.5)
XYZ	xyz(6.5910, 5.4417, 23.9908)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3E88 #88641A

analogous

#1A7588 #1A3E88 #2D1A88

triadic

#1A3E88 #881A3E #3E881A

tetradic

#1A3E88 #881A75 #88641A #1A882D

square

#1A3E88 #881A75 #88641A #1A882D

split-complementary

#1A3E88 #882D1A #75881A

monochromatic

#060F21 #102755 #1A3E88 #2455BB #4274DB

Accessibility & contrast

On white

10.06

#1A3E88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#1A3E88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3E88

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3E88	#FFFFFF	#000000	##FFFFFF
##1A3E88	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#06478B

Deuteranopia (green-blind)

#003D87

Tritanopia (blue-blind)

#00505C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1a3e88;
/* rgb */ color: rgb(26, 62, 136);
/* oklch */ color: oklch(38.4% 0.131 262.5);

Tailwind

colors: {
  custom: {
    50: '#6972ab',
    500: '#1a3e88',
    950: '#000000',
  },
}

SCSS

$custom: #1a3e88;
$custom-light: #6972ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3e88",
  "rgb": {
    "r": 26,
    "g": 62,
    "b": 136
  },
  "hsl": {
    "h": 220.364,
    "s": 67.901,
    "l": 31.765
  },
  "oklch": {
    "l": 0.38446,
    "c": 0.13083,
    "h": 262.5
  },
  "luminance": 0.05442
}

Semantic roles & 50–950 ramp

primary

#1A3E88

secondary

#BB9443

accent

#B23DEB

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1A3E88

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

Preview Lab → · Contrast checker → · Palette generator →