#1A388B#1A388B

#1A388B is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.4% C 0.143 H 265.0°. Best body text is #FFFFFF at 10.59:1 contrast (WCAG AA passes).

Color values

HEX	#1A388B
RGB	rgb(26, 56, 139)
HSL	hsl(224, 68%, 32%)
HSV	hsv(224, 81%, 55%)
CMYK	cmyk(81.3%, 59.7%, 0%, 45.5%)
CIE-LAB	lab(26.48, 21.35, -49.27)
CIE-LCH	lch(26.48, 53.70, 293.43°)
OKLab	oklab(37.41% -0.0125 -0.1423)
OKLCH	oklch(37.41% 0.143 265)
XYZ	xyz(6.4987, 4.9113, 25.0266)
Luminance	0.0491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A388B #8B6D1A

analogous

#1A708B #1A388B #351A8B

triadic

#1A388B #8B1A38 #388B1A

tetradic

#1A388B #8B1A70 #8B6D1A #1A8B35

square

#1A388B #8B1A70 #8B6D1A #1A8B35

split-complementary

#1A388B #8B351A #708B1A

monochromatic

#070E24 #102357 #1A388B #244DBF #436CDC

Accessibility & contrast

On white

10.59

#1A388B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#1A388B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A388B

10.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A388B	#FFFFFF	#000000	##FFFFFF
##1A388B	1.00	10.59	1.98	10.59
#FFFFFF	10.59	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448E

Deuteranopia (green-blind)

#003A89

Tritanopia (blue-blind)

#004D5C

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1a388b;
/* rgb */ color: rgb(26, 56, 139);
/* oklch */ color: oklch(37.4% 0.143 265.0);

Tailwind

colors: {
  custom: {
    50: '#6b6eae',
    500: '#1a388b',
    950: '#000000',
  },
}

SCSS

$custom: #1a388b;
$custom-light: #6b6eae;
$custom-dark: #000000;

JSON

{
  "hex": "#1a388b",
  "rgb": {
    "r": 26,
    "g": 56,
    "b": 139
  },
  "hsl": {
    "h": 224.071,
    "s": 68.485,
    "l": 32.353
  },
  "oklch": {
    "l": 0.37407,
    "c": 0.1429,
    "h": 265
  },
  "luminance": 0.04912
}

Semantic roles & 50–950 ramp

primary

#1A388B

secondary

#BD9D44

accent

#BD3CEB

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1A388B

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

Preview Lab → · Contrast checker → · Palette generator →