#1A378D#1A378D

#1A378D is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.4% C 0.147 H 265.4°. Best body text is #FFFFFF at 10.63:1 contrast (WCAG AA passes).

Color values

HEX	#1A378D
RGB	rgb(26, 55, 141)
HSL	hsl(225, 69%, 33%)
HSV	hsv(225, 82%, 55%)
CMYK	cmyk(81.6%, 61%, 0%, 44.7%)
CIE-LAB	lab(26.37, 22.85, -50.68)
CIE-LCH	lch(26.37, 55.59, 294.27°)
OKLab	oklab(37.38% -0.0118 -0.1465)
OKLCH	oklch(37.38% 0.147 265.4)
XYZ	xyz(6.5982, 4.8743, 25.7872)
Luminance	0.0488 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A378D #8D701A

analogous

#1A708D #1A378D #371A8D

triadic

#1A378D #8D1A37 #378D1A

tetradic

#1A378D #8D1A70 #8D701A #1A8D37

square

#1A378D #8D1A70 #8D701A #1A8D37

split-complementary

#1A378D #8D371A #708D1A

monochromatic

#070F26 #102359 #1A378D #244BC1 #456BDD

Accessibility & contrast

On white

10.63

#1A378D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#1A378D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A378D

10.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A378D	#FFFFFF	#000000	##FFFFFF
##1A378D	1.00	10.63	1.98	10.63
#FFFFFF	10.63	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004490

Deuteranopia (green-blind)

#00398B

Tritanopia (blue-blind)

#004D5C

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1a378d;
/* rgb */ color: rgb(26, 55, 141);
/* oklch */ color: oklch(37.4% 0.147 265.4);

Tailwind

colors: {
  custom: {
    50: '#6b6daf',
    500: '#1a378d',
    950: '#000000',
  },
}

SCSS

$custom: #1a378d;
$custom-light: #6b6daf;
$custom-dark: #000000;

JSON

{
  "hex": "#1a378d",
  "rgb": {
    "r": 26,
    "g": 55,
    "b": 141
  },
  "hsl": {
    "h": 224.87,
    "s": 68.862,
    "l": 32.745
  },
  "oklch": {
    "l": 0.3738,
    "c": 0.14698,
    "h": 265.4
  },
  "luminance": 0.04875
}

Semantic roles & 50–950 ramp

primary

#1A378D

secondary

#BE9F45

accent

#BF3CEC

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #1A378D

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

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