#1A398E#1A398E

#1A398E is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.9% C 0.146 H 264.9°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#1A398E
RGB	rgb(26, 57, 142)
HSL	hsl(224, 69%, 33%)
HSV	hsv(224, 82%, 56%)
CMYK	cmyk(81.7%, 59.9%, 0%, 44.3%)
CIE-LAB	lab(27.01, 21.86, -50.26)
CIE-LCH	lch(27.01, 54.81, 293.51°)
OKLab	oklab(37.89% -0.013 -0.1452)
OKLCH	oklch(37.89% 0.146 264.9)
XYZ	xyz(6.7699, 5.0981, 26.2132)
Luminance	0.0510 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A398E #8E6F1A

analogous

#1A738E #1A398E #351A8E

triadic

#1A398E #8E1A39 #398E1A

tetradic

#1A398E #8E1A73 #8E6F1A #1A8E35

square

#1A398E #8E1A73 #8E6F1A #1A8E35

split-complementary

#1A398E #8E351A #738E1A

monochromatic

#070F27 #11245A #1A398E #234EC2 #456EDD

Accessibility & contrast

On white

10.40

#1A398E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#1A398E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A398E

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A398E	#FFFFFF	#000000	##FFFFFF
##1A398E	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004591

Deuteranopia (green-blind)

#003B8C

Tritanopia (blue-blind)

#004F5D

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1a398e;
/* rgb */ color: rgb(26, 57, 142);
/* oklch */ color: oklch(37.9% 0.146 264.9);

Tailwind

colors: {
  custom: {
    50: '#6b6eb0',
    500: '#1a398e',
    950: '#000000',
  },
}

SCSS

$custom: #1a398e;
$custom-light: #6b6eb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a398e",
  "rgb": {
    "r": 26,
    "g": 57,
    "b": 142
  },
  "hsl": {
    "h": 223.966,
    "s": 69.048,
    "l": 32.941
  },
  "oklch": {
    "l": 0.37885,
    "c": 0.14582,
    "h": 264.9
  },
  "luminance": 0.05099
}

Semantic roles & 50–950 ramp

primary

#1A398E

secondary

#BE9E45

accent

#BD3CEC

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #1A398E

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

Preview Lab → · Contrast checker → · Palette generator →