#1A388C#1A388C

#1A388C is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.5% C 0.144 H 265.0°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#1A388C
RGB	rgb(26, 56, 140)
HSL	hsl(224, 69%, 33%)
HSV	hsv(224, 81%, 55%)
CMYK	cmyk(81.4%, 60%, 0%, 45.1%)
CIE-LAB	lab(26.56, 21.75, -49.75)
CIE-LCH	lch(26.56, 54.30, 293.62°)
OKLab	oklab(37.5% -0.0125 -0.1438)
OKLCH	oklch(37.5% 0.144 265)
XYZ	xyz(6.5721, 4.9406, 25.4131)
Luminance	0.0494 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A388C #8C6E1A

analogous

#1A718C #1A388C #351A8C

triadic

#1A388C #8C1A38 #388C1A

tetradic

#1A388C #8C1A71 #8C6E1A #1A8C35

square

#1A388C #8C1A71 #8C6E1A #1A8C35

split-complementary

#1A388C #8C351A #718C1A

monochromatic

#070F25 #102358 #1A388C #244DC0 #446CDC

Accessibility & contrast

On white

10.56

#1A388C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#1A388C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A388C

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A388C	#FFFFFF	#000000	##FFFFFF
##1A388C	1.00	10.56	1.99	10.56
#FFFFFF	10.56	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448F

Deuteranopia (green-blind)

#003A8A

Tritanopia (blue-blind)

#004D5C

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1a388c;
/* rgb */ color: rgb(26, 56, 140);
/* oklch */ color: oklch(37.5% 0.144 265.0);

Tailwind

colors: {
  custom: {
    50: '#6b6eae',
    500: '#1a388c',
    950: '#000000',
  },
}

SCSS

$custom: #1a388c;
$custom-light: #6b6eae;
$custom-dark: #000000;

JSON

{
  "hex": "#1a388c",
  "rgb": {
    "r": 26,
    "g": 56,
    "b": 140
  },
  "hsl": {
    "h": 224.211,
    "s": 68.675,
    "l": 32.549
  },
  "oklch": {
    "l": 0.37497,
    "c": 0.1443,
    "h": 265
  },
  "luminance": 0.04941
}

Semantic roles & 50–950 ramp

primary

#1A388C

secondary

#BE9E44

accent

#BD3CEC

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1A388C

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

Preview Lab → · Contrast checker → · Palette generator →