#1A3B8A#1A3B8A

#1A3B8A is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.0% C 0.138 H 263.9°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#1A3B8A
RGB	rgb(26, 59, 138)
HSL	hsl(222, 68%, 32%)
HSV	hsv(222, 81%, 54%)
CMYK	cmyk(81.2%, 57.2%, 0%, 45.9%)
CIE-LAB	lab(27.25, 18.85, -47.40)
CIE-LCH	lch(27.25, 51.01, 291.69°)
OKLab	oklab(37.96% -0.0147 -0.1368)
OKLCH	oklch(37.96% 0.138 263.9)
XYZ	xyz(6.5758, 5.1818, 24.6934)
Luminance	0.0518 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3B8A #8A691A

analogous

#1A738A #1A3B8A #311A8A

triadic

#1A3B8A #8A1A3B #3B8A1A

tetradic

#1A3B8A #8A1A73 #8A691A #1A8A31

square

#1A3B8A #8A1A73 #8A691A #1A8A31

split-complementary

#1A3B8A #8A311A #738A1A

monochromatic

#070F23 #102557 #1A3B8A #2451BD #4370DC

Accessibility & contrast

On white

10.31

#1A3B8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#1A3B8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3B8A

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3B8A	#FFFFFF	#000000	##FFFFFF
##1A3B8A	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468D

Deuteranopia (green-blind)

#003B88

Tritanopia (blue-blind)

#004F5C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1a3b8a;
/* rgb */ color: rgb(26, 59, 138);
/* oklch */ color: oklch(38.0% 0.138 263.9);

Tailwind

colors: {
  custom: {
    50: '#6a70ad',
    500: '#1a3b8a',
    950: '#000000',
  },
}

SCSS

$custom: #1a3b8a;
$custom-light: #6a70ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3b8a",
  "rgb": {
    "r": 26,
    "g": 59,
    "b": 138
  },
  "hsl": {
    "h": 222.321,
    "s": 68.293,
    "l": 32.157
  },
  "oklch": {
    "l": 0.37957,
    "c": 0.1376,
    "h": 263.9
  },
  "luminance": 0.05183
}

Semantic roles & 50–950 ramp

primary

#1A3B8A

secondary

#BD9943

accent

#B83DEB

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1A3B8A

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

Preview Lab → · Contrast checker → · Palette generator →